fix(appinsights): inline blazorApplicationInsights JS to fix 404 on _content/ path

[kolatts]

Summary

• Removes the broken explicit import() call (was fetching from _content/ which 404s — .lib.module.js files from NuGet RCLs are not copied there as regular static assets)
• Instead, inlines the window.blazorApplicationInsights = {...} setup directly as a second <script> block appended to the AI SDK snippet rendered by the component
• The JS runs synchronously before OnAfterRenderAsync, guaranteeing window.blazorApplicationInsights is defined when interop calls are made
• No file serving dependency whatsoever

Test plan

• Deploy to prod, verify no console errors on load at app.imagile.dev
• Verify Application Insights receives telemetry with correct cloud role/instance tags