angular, dotnet upgrades, db speed improvements

[mlapaglia]

• Added PWA so app can be installed on desktop/laptop/mobile.
• Package upgrades.
• Dropped preview jpeg columns, no longer used.
• Added indexes to speed up filters query.
• Tweaked plate statistics query for faster response.
• Split plate/vehicle images into separate table for faster queries.
• Added optional image compression.
• Upgraded to .net 7, docker dotnet build sdk and runtime images to latest.
• Upgraded to Angular 16.
• Added web request calls being cancelled when navigating away from pages.
• Fixed logging to save to correct folder.
• Fixed issue with JWT not being secure enough.
• Fixed issue with logging out not clearing tokens.
• Improved the responsiveness of displaying the vehicle and plate images on mobile.
• Slight changes to displaying ignored plates.

Depending on database size and the storage medium the database is on, the first time startup after upgrading is going to take a while, SQLite doesn't support dropping columns without rebuilding the entire database, adding the indexes to speed up multiple queries and moving the plate/vehicle images out to a separate table will take a while.