DevExpress Fluent theme: grid/info panel refactor

Major refactor for DevExpress Fluent theme compatibility:
- InfoPanel templates now use strongly-typed context (`InfoPanelContext`)
- Unified grid layout with `MgGridWithInfoPanel` wrapper
- CSS updated to use Fluent theme variables and container queries
- App-wide CSS cleanup and formatting improvements
- `.editorconfig` added for modern CSS support
- Improved InfoPanel instance resolution for nested grids
- Codebase is cleaner, more maintainable, and ready for further customization

FruitBankHybrid.Shared/Components/GridProductDtoTemplate.razor

@@ -74,7 +74,6 @@
 	</ToolbarTemplate>
 </GridProductDto>
 
-
 @code {
 	[Inject] public required DatabaseClient Database { get; set; }
 

FruitBankHybrid.Shared/Components/GridShippingItemTemplate.razor

@@ -15,6 +15,8 @@
 @inject IEnumerable<IAcLogWriterClientBase> LogWriters
 @inject FruitBankSignalRClient FruitBankSignalRClient
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridShippingItemBase @ref="Grid" ParentDataItem="ParentDataItem" DataSource="ShippingItems" AutoSaveLayoutName="GridShippingItem"
 							  SignalRClient="FruitBankSignalRClient" Logger="_logger"
 							  CssClass="@GridCss" ValidationEnabled="false" CustomizeElement="Grid_CustomizeElement"
@@ -123,7 +125,8 @@
 								   FooterColumnName="NetWeight" />
 			</GroupSummary>
 		</GridShippingItemBase>
-@* </MgGridBase> *@
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 	//[Inject] public required ObjectLock ObjectLock { get; set; }

FruitBankHybrid.Shared/Components/Grids/GenericAttributes/GridGenericAttribute.razor

@@ -15,6 +15,8 @@
 @inject IEnumerable<IAcLogWriterClientBase> LogWriters
 @inject FruitBankSignalRClient FruitBankSignalRClient
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridGenericAttributeBase @ref="Grid" DataSource="GenericAttributes" AutoSaveLayoutName="GridGenericAttribute" SignalRClient="FruitBankSignalRClient" Logger="_logger"
 								  ParentDataItem="@ParentDataItem" CssClass="@GridCss" ValidationEnabled="false" OnGridFocusedRowChanged="Grid_FocusedRowChanged">
 			<Columns>
@@ -36,6 +38,8 @@
 				}
 			</ToolbarTemplate>
 		</GridGenericAttributeBase>
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 	[Inject] public required DatabaseClient Database { get; set; }

FruitBankHybrid.Shared/Components/Grids/Partners/GridPartner.razor

@@ -13,6 +13,8 @@
 @inject IEnumerable<IAcLogWriterClientBase> LogWriters
 @inject FruitBankSignalRClient FruitBankSignalRClient
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridPartnerBase @ref="Grid"
 						 DataSource="Partners"
 						 AutoSaveLayoutName="GridPartner"
@@ -69,6 +71,8 @@
 				}
 			</ToolbarTemplate>
 		</GridPartnerBase>
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 	//[Inject] public required ObjectLock ObjectLock { get; set; }

FruitBankHybrid.Shared/Components/Grids/Products/GridStockQuantityHistoryDtoTemplate.razor

@@ -11,6 +11,8 @@
 @inject IEnumerable<IAcLogWriterClientBase> LogWriters
 @inject FruitBankSignalRClient FruitBankSignalRClient
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridStockQuantityHistoryDtoBase @ref="Grid" ContextIds="ContextIds" ParentDataItem="ParentDataItem" DataSource="StockQuantityHistoryDtos"
 										 AutoSaveLayoutName="GridStockQuantityHistoryDto" SignalRClient="FruitBankSignalRClient" Logger="_logger"
 										 CssClass="@GridCss" ValidationEnabled="false">
@@ -61,6 +63,8 @@
 						   FooterColumnName="NetWeight" />
 	</GroupSummary> *@
 		</GridStockQuantityHistoryDtoBase>
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 	[Inject] public required DatabaseClient Database { get; set; }

FruitBankHybrid.Shared/Components/Grids/ShippingDocuments/GridShippingDocumentInfoPanel.razor

@@ -5,15 +5,15 @@
 @inject IJSRuntime JS
 
 <MgGridInfoPanel OnDataItemChanged="OnDataItemChangedAsync">
-	@* <HeaderTemplate Context="dataItem">
+	@* <HeaderTemplate Context="ctx">
         <div class="dxbl-grid-header-panel px-3 py-2 border-bottom d-flex align-items-center">
             <span class="me-2">??</span>
             <span class="fw-semibold">Szállítólevél részletei</span>
         </div>
     </HeaderTemplate> *@
 
-	@* <BeforeColumnsTemplate Context="dataItem">
+	@* <BeforeColumnsTemplate Context="ctx">
-        @if (dataItem is ShippingDocument doc)
+        @if (ctx.DataItem is ShippingDocument doc)
         {
             <div class="alert alert-info mb-2 py-1 px-2 small">
                 <strong>Partner:</strong> @doc.Partner?.Name
@@ -21,8 +21,8 @@
         }
     </BeforeColumnsTemplate> *@
 
-	<AfterColumnsTemplate Context="dataItem">
+	<AfterColumnsTemplate Context="ctx">
-		@if (dataItem is ShippingDocument doc)
+		@if (ctx is { IsEditMode: false, DataItem: ShippingDocument doc })
 		{
 			<table class="table table-sm table-bordered table-striped" style="margin-top: 35px;">
 				<colgroup>
@@ -73,7 +73,7 @@
 		}
 	</AfterColumnsTemplate>
 
-	@* <FooterTemplate Context="dataItem">
+	@* <FooterTemplate Context="ctx">
         <div class="p-2 border-top d-flex gap-2">
             <DxButton Text="Nyomtatás" IconCssClass="dx-icon dx-icon-print" RenderStyle="ButtonRenderStyle.Light" />
             <DxButton Text="Export" IconCssClass="dx-icon dx-icon-export" RenderStyle="ButtonRenderStyle.Light" />

FruitBankHybrid.Shared/Components/Grids/Shippings/GridShipping.razor

@@ -15,6 +15,8 @@
 
 @* <GridShippingBase @ref="Grid" Data="Shippings" AutoSaveLayoutName="GridShipping"> *@
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridShippingBase @ref="Grid" DataSource="Shippings" AutoSaveLayoutName="GridShipping" SignalRClient="FruitBankSignalRClient" Logger="_logger"
 						  CssClass="@GridCss" ValidationEnabled="false"
 						  OnGridFocusedRowChanged="Grid_FocusedRowChanged">
@@ -59,6 +61,8 @@
 				}
 			</ToolbarTemplate>
 		</GridShippingBase>
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 	//[Inject] public required ObjectLock ObjectLock { get; set; }

FruitBankHybrid.Shared/Components/Grids/StockTakingItems/GridStockTakingItem.razor

@@ -13,6 +13,8 @@
 @inject IEnumerable<IAcLogWriterClientBase> LogWriters
 @inject FruitBankSignalRClient FruitBankSignalRClient
 
+<MgGridWithInfoPanel ShowInfoPanel="@IsMasterGrid">
+	<GridContent>
 		<GridStockTakingItemBase @ref="Grid" AutoSaveLayoutName="GridStockTakingItem" SignalRClient="FruitBankSignalRClient" Logger="_logger"
 								 CssClass="@GridCss" ValidationEnabled="false" OnGridFocusedRowChanged="Grid_FocusedRowChanged">
 			<Columns>
@@ -50,6 +52,8 @@
 				}
 			</ToolbarTemplate>
 		</GridStockTakingItemBase>
+	</GridContent>
+</MgGridWithInfoPanel>
 
 @code {
 

FruitBankHybrid.Shared/wwwroot/app.css

@@ -110,9 +110,10 @@ h1:focus {
 	background-color: #F7F7F7 !important;
 	color: #161616;
 }
-/* Fluent Themes */
+
-/*.alt-item {
+/* DevExpress Fluent Theme - alternating row colors */
-	--dxbl-grid-row-bg: var(--DS-color-surface-neutral-subdued-rest);
+/*.alt-item > td:not(.dxbl-grid-empty-cell):not(.dxbl-grid-indent-cell) {
+	background-color: var(--DS-color-surface-neutral-subdued-rest) !important;
 }*/
 
 /*endregion: DSGrids*/