chore(perf): bump version to 9.0.40 to match MAUI 9.0.40

Update version from 9.0.0 to 9.0.40 to align precisely with MAUI 9.0.40 release. Update CHANGELOG, package metadata, and templates. Fix thread safety issue in FontFallbackManager by changing _glyphCache from Dictionary to ConcurrentDictionary to prevent race conditions during concurrent glyph lookups.

templates/OpenMaui.Linux.Templates.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <PackageType>Template</PackageType>
-    <PackageVersion>9.0.0</PackageVersion>
+    <PackageVersion>9.0.40</PackageVersion>
     <PackageId>OpenMaui.Linux.Templates</PackageId>
     <Title>OpenMaui Linux Project Templates</Title>
     <Authors>MarketAlly Pte Ltd, David H. Friedel Jr.</Authors>
@@ -13,7 +13,7 @@ Templates included:
 - openmaui-linux: Basic Linux app with code-based UI
 - openmaui-linux-xaml: Full XAML support with standard MAUI syntax</Description>
     <PackageTags>dotnet-new;templates;maui;linux;desktop;openmaui;xaml</PackageTags>
-    <PackageProjectUrl>https://git.marketally.com/open-maui/maui-linux</PackageProjectUrl>
+    <PackageProjectUrl>https://git.marketally.ai/open-maui/maui-linux</PackageProjectUrl>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <Copyright>Copyright 2025-2026 MarketAlly Pte Ltd</Copyright>