- **FIX**: make analytics fully optional. ([67d58887](https://github…

….com/hpi-studyu/studyu/commit/67d588879a69a9105cd2e54c08f2a2feae1224a2))

 - **FIX**: upgrade deps. ([aa2cb251](https://github.com/hpi-studyu/studyu/commit/aa2cb2512e3db4e31f97edea8d2bccf55e91f9d2))
 - **FEAT**: make study tags reactive. ([f2f8ecaf](https://github.com/hpi-studyu/studyu/commit/f2f8ecafb4f21d21128ce089eb99608778b91e2e))

 - **FIX**: upgrade deps (switch to wakelock_plus). ([9112f5f0](https…

…:https://github.com/hpi-studyu/studyu/commit/9112f5f0a9c778e2abf24f6aa585bc9f539e6ccf))

 - **FIX**: modify xcode version and ios target platform. ([67ec1562](https://github.com/hpi-studyu/studyu/commit/67ec15621054606f2e1995caa9f2b778e1d6593e))
 - **FIX**: change provisioning profile name. ([5d84a1fc](https://github.com/hpi-studyu/studyu/commit/5d84a1fc7939674e509aff7a72581b10df0d969a))
 - **FIX**: const constructor. ([1629003a](https://github.com/hpi-studyu/studyu/commit/1629003ae93d6fd6a495b3cbe6c23dd84ae3bcd8))

 - **FIX**: analytics same key. ([b2412c42](https://github.com/hpi-st…

…udyu/studyu/commit/b2412c422263c8f1e08f5fe6197ac412fe5941c6))

 - **DOCS**: add todo, describe bug. ([4316341c](https://github.com/hpi-studyu/studyu/commit/4316341c601bd884daf271c6b6ef5805828bc32e))

 - **FEAT**: store analytics data in the backend and support caching.…

… ([f3e70610](https://github.com/hpi-studyu/studyu/commit/f3e7061081f631d74c6df0ea78024ace6ea1f333))

 - **FIX**: overwrite universal_html dep. ([19f30c86](https://github.…

…com/hpi-studyu/studyu/commit/19f30c863dbb59c4f176694c177fc8c0f964dc24))

 - **FIX**: deps quickfix. ([99cc4ea6](https://github.com/hpi-studyu/studyu/commit/99cc4ea642b4d97c3d59ffe1412eb1e2c231615b))

 - **REFACTOR**: initial null safety support. ([82c119f9](https://git…

…hub.com/hpi-studyu/studyu/commit/82c119f980f647133bff1c3748625e148cbc6ffe))

 - **FIX**: only invalidate questions if necessary. ([c33d5162](https://github.com/hpi-studyu/studyu/commit/c33d5162b18965787a0a80d2cc98c3194281c693))
 - **FIX**: improve offline mode, check earlier if device is offline. ([c7a143f5](https://github.com/hpi-studyu/studyu/commit/c7a143f5d2b16220ac72e6b533cee18ac25cd0d3))

 - **FIX**: study cannot be left inadvertently anymore via about. ([b…

…8237b5b](https://github.com/hpi-studyu/studyu/commit/b8237b5b4e0b4c1e35d3b22efe22fd89d2990ba5))

 - **FIX**: provide option to disable analytics in settings. ([1f2dc252](https://github.com/hpi-studyu/studyu/commit/1f2dc252aee41896d12951a2e13bd37b24d47df9))

 - **FIX**: could not find libflutter.so. ([95aa1828](https://github.…

…com/hpi-studyu/studyu/commit/95aa1828cc8b9c280218ae91da4127f75cc6b96d))

 - **FIX**: device language is now used as default app language. ([ee78de35](https://github.com/hpi-studyu/studyu/commit/ee78de35c5ebed91fca297f9c1a7e78aac4d67f3))
 - **FIX**: improve debug mode and send test notification. ([84937a2b](https://github.com/hpi-studyu/studyu/commit/84937a2bd50dfe18cd26cb1e112347f0a2cabd73))
 - **FIX**: more slider usability fixes. ([d8309803](https://github.com/hpi-studyu/studyu/commit/d83098037f6f1cf9bdc0f150df6d94156c81f19d))
 - **FIX**: improve questionnaire slider usability. ([9068c195](https://github.com/hpi-studyu/studyu/commit/9068c1954ccc1e3265e72e16304528b7f2e81dbc))
 - **FIX**: slider design overhaul. ([75589ca1](https://github.com/hpi-studyu/studyu/commit/75589ca1f443f4ef779a8766cc9150cda74fb3bb))
 - **FIX**: improve debug mode and send test notification. ([8c6afd6f](https://github.com/hpi-studyu/studyu/commit/8c6afd6fd36904592a5aa0c118c5cf88afc8bfc1))
 - **FIX**: more slider usability fixes. ([6e151bc6](https://github.com/hpi-studyu/studyu/commit/6e151bc6281c3740ccb8d23154994c2066fc65ae))
 - **FIX**: improve questionnaire slider usability. ([187fda96](https://github.com/hpi-studyu/studyu/commit/187fda96dfb6faa44d6521859cf0219c726cab17))
 - **FIX**: slider design overhaul. ([b5a6b8ad](https://github.com/hpi-studyu/studyu/commit/b5a6b8ad18c67d2ab5b21313ff5740f175d9b7eb))
 - **FEAT**: sentry integration in core. ([0fae767f](https://github.com/hpi-studyu/studyu/commit/0fae767f0a7dc3c3409dd5179eeb870429b580cd))
 - **FEAT**: Add sentry.io for crash reports. ([d19e0e9b](https://github.com/hpi-studyu/studyu/commit/d19e0e9b2d1db453f9e1e09cd0b37269c22278cb))

 - **FIX**: improve debug mode and send test notification. ([8c6afd6f…

…](https://github.com/hpi-studyu/studyu/commit/8c6afd6fd36904592a5aa0c118c5cf88afc8bfc1))

 - **FIX**: more slider usability fixes. ([6e151bc6](https://github.com/hpi-studyu/studyu/commit/6e151bc6281c3740ccb8d23154994c2066fc65ae))
 - **FIX**: improve questionnaire slider usability. ([187fda96](https://github.com/hpi-studyu/studyu/commit/187fda96dfb6faa44d6521859cf0219c726cab17))
 - **FIX**: slider design overhaul. ([b5a6b8ad](https://github.com/hpi-studyu/studyu/commit/b5a6b8ad18c67d2ab5b21313ff5740f175d9b7eb))
 - **FIX**: disable multiple submit button clicks for task widget. ([5297f590](https://github.com/hpi-studyu/studyu/commit/5297f59074f3e2771cdb9431fc563a236894fd08))

 - **FIX**: upgrade deps to fix invalid refresh token bug. ([6a4da159…

…](https://github.com/hpi-studyu/studyu/commit/6a4da1594d7baed5d76f74464670ec411abc961c))