Refactor IconsCollection to dynamic icon loading

Replaces the hardcoded icon list in IconsCollection.razor with dynamic reflection-based loading of icon components from the BlazorOcticons assembly. This makes the icon collection automatically include all available icons and simplifies maintenance. Also removes the PreferExactMatches parameter from App.razor Router.

Author: elv1s42

.claude/settings.local.json

@@ -0,0 +1,17 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash(dotnet build:*)",
+      "WebFetch(domain:www.nuget.org)",
+      "Bash(dotnet nuget:*)",
+      "Bash(dotnet restore:*)",
+      "Bash(dir \"C:\\GitHub\\BlazorOcticons-web\\WebApp\\obj\\Debug\\net9.0\\generated\" /s /b)",
+      "Bash(dir \"C:\\GitHub\\BlazorOcticons-web\\WebApp\\obj\\Debug\\net9.0\" /b)",
+      "Bash(dotnet list:*)",
+      "Bash(dir \"%USERPROFILE%\\.nuget\\packages\\blazorocticons\\1.2.0\" /s /b)",
+      "Bash(findstr:*)",
+      "Bash(dotnet run:*)",
+      "Bash(cat:*)"
+    ]
+  }
+}

WebApp/App.razor

@@ -1,4 +1,4 @@
-<Router AppAssembly="@typeof(Program).Assembly" PreferExactMatches="@true">
+<Router AppAssembly="@typeof(Program).Assembly">
     <Found Context="routeData">
         <RouteView RouteData="@routeData" DefaultLayout="@typeof(MainLayout)" />
     </Found>