Add docs to enable restricted settings on Android 13

docs/docs/user-guide/troubleshooting/notification-access.mdx

@@ -0,0 +1,32 @@
+import MoreVertRoundedIcon from '@mui/icons-material/MoreVertRounded'
+
+# Notification Access on Android 13+
+
+Starting with Android 13, notification access is restricted for sideloaded apps. If you sideloaded
+the APK, you might need to perform some extra steps to enable notification access (which is required for the music widget and for notification badges):
+
+1. Try to grant the notification access permission as you would normally do. If you sideloaded the APK, all the controls are disabled:
+
+<img src="/img/notification-access-1.png" width="300"/>
+
+2. Tap on the disabled toggle “Allow notification access”. This dialog will show up:
+
+<img src="/img/notification-access-2.png" width="300"/>
+
+3. Tap “OK” to close the dialog.
+
+4. Tap on the app icon. It leads to the app info screen.
+
+<img src="/img/notification-access-3.png" width="300"/>
+
+5. Tap on the 3-dot-menu (<MoreVertRoundedIcon/>) in the top-right corner.
+
+:::info
+This menu only shows up if you have tried to enable a restricted setting before. **Step 2 is crucial for this to work.**
+:::
+
+6. Tap on “Allow restricted settings”
+
+<img src="/img/notification-access-4.png" width="300"/>
+
+7. Go back to the previous screen. The controls are no longer disabled, and you can allow notification access.

docs/docs/user-guide/widgets/music-widget.md

@@ -8,6 +8,11 @@ However there are a few things you might want to know:
 
 Per default, only media sessions from "music apps" are shown in the music widget. An app qualifies as "music app" if it has an activity that has either the `android.intent.action.MUSIC_PLAYER` action or the `android.intent.action.MAIN` action and the `android.intent.category.APP_MUSIC` category. Some media apps don't declare these in their manifests so the launcher won't recognize them as music apps. You can disable this filter in Settings > Widgets > Music > Restrict to music apps. With this setting disabled, the music widget will show media sessions from all apps, including non-music apps like browsers, video player apps and video streaming apps.
 
+## I can't grant notification access permission!
+
+Please refer to [notification access on Android 13+](/docs/user-guide/troubleshooting/notification-access)
+
 ## Why do I need to grant access to my notifications just to control some stupid media session?
 
 That's a very good question. I don't know. Ask Google, why they make so [nonsensical decisions](https://www.reddit.com/r/mAndroidDev/comments/gn6ckb/man_im_so_happy_no_malicious_app_can_get_access/). The only way for third party apps to control media sessions is to read notifications and extract the media sessions from there. Sadly, the more privacy-friendly alternative is restricted to system apps only, ["due to privacy of media consumption"](https://developer.android.com/reference/android/Manifest.permission#MEDIA_CONTENT_CONTROL). Yep, that makes sense. Thank you, Google.
+