Vertretungsapp Recode for 1.0.0

[SachsenspieltCoding]

This PR includes a complete recode of the whole project, ready for 1.0.0

Project status

• Reimplement basic plan fetching with caching (see indiware-api package)
• New design
• Reimplement plan view
  • Reimplement filter
  • Implement teacher plans
• Reimplement favorites
• Reimplement theming Implement theming #169 (needs better primary color changer, see Issue)
• Implement Next Lesson Display Homescreen #6
• Implement Implement search // Find empty room #59
• Fix Can't refresh twice #153
• Fix Info message overflow #150
• Fix Wrong Date plan Update indiware-api#22
• Fix Use lucide icons #154
• QOL: Add (de)select all in filter view #171
• Fix: Favorites reorder can fail (WebKit) #170
• Better error handling when refresh fails #161
• App Info page #172
• Bug: Check Credentials before accepting them #181
• PWA install tutorial under /install #182
• Bug: Further Improvements to the Plan refresh error handling #183

Other things to consider

• PWA offline support
• Android APK support (via capacitor)
• iOS support through sideloading (via capacitor?)

[sentry-io]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ TypeError: r is undefined stringToHexadecimal(src/lib/common/stringToHexa... View Issue
• ‼️ TypeError: e[s] is undefined d/<(src/lib/cache/cacheHelper) View Issue
• ‼️ TypeError: credentials is null getAllInfos(src/lib/cache/cacheHelper) View Issue
• ‼️ Error: No credentials found load(src/routes/(app)/+layout) View Issue
• ‼️ Error: No credentials found load(src/routes/(app)/+layout) View Issue

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