Fix generic parameter names in snippet templates to match component APIs

Co-authored-by: csharpfritz <78577+csharpfritz@users.noreply.github.com>

Author: Copilot

docs/UtilityFeatures/Snippets.md

@@ -93,7 +93,7 @@ To use enumeration values without full qualification:
 Now you can use values like `Table`, `Flow`, `Horizontal`, `Vertical` directly:
 
 ```razor
-<DataList TItemType="Product" DataSource="@products" RepeatLayout="Table" RepeatDirection="Horizontal">
+<DataList ItemType="Product" DataSource="@products" RepeatLayout="Table" RepeatDirection="Horizontal">
     ...
 </DataList>
 ```

src/BlazorWebFormsComponents.Snippets/Snippets/DataListComponent.snippet

@@ -24,7 +24,7 @@
         </Literal>
       </Declarations>
       <Code Language="Razor">
-        <![CDATA[<DataList TItemType="$ItemType$" DataSource="@$DataSource$" RepeatColumns="2" RepeatLayout="Table">
+        <![CDATA[<DataList ItemType="$ItemType$" DataSource="@$DataSource$" RepeatColumns="2" RepeatLayout="Table">
     <ItemTemplate>
         <div>
             <h3>@context.Name</h3>

src/BlazorWebFormsComponents.Snippets/Snippets/FormViewComponent.snippet

@@ -24,7 +24,7 @@
         </Literal>
       </Declarations>
       <Code Language="Razor">
-        <![CDATA[<FormView TItemType="$ItemType$" DataSource="@$DataSource$">
+        <![CDATA[<FormView ItemType="$ItemType$" DataSource="@$DataSource$">
     <ItemTemplate>
         <div class="form-view">
             <h3>@context.Name</h3>

src/BlazorWebFormsComponents.Snippets/Snippets/GridViewComponent.snippet

@@ -24,7 +24,7 @@
         </Literal>
       </Declarations>
       <Code Language="Razor">
-        <![CDATA[<GridView TItem="$ItemType$" DataSource="@$DataSource$">
+        <![CDATA[<GridView ItemType="$ItemType$" DataSource="@$DataSource$">
     <Columns>
         <BoundField DataField="@(nameof($ItemType$.Id))" HeaderText="ID" />
         <BoundField DataField="@(nameof($ItemType$.Name))" HeaderText="Name" />

src/BlazorWebFormsComponents.Snippets/Snippets/RepeaterComponent.snippet

@@ -24,7 +24,7 @@
         </Literal>
       </Declarations>
       <Code Language="Razor">
-        <![CDATA[<Repeater TItemType="$ItemType$" DataSource="@$DataSource$">
+        <![CDATA[<Repeater ItemType="$ItemType$" DataSource="@$DataSource$">
     <ItemTemplate>
         <div class="item">
             @context.Name