Deleting the rules async throws an exception when the source is delete before the rules referencing it

Bump fdroid version to 1.0-Beta-adblock (Build 36)

This update will only be pushed to the alpha channel and thus will not be publish to the fdroid repo.

Currently translated at 100.0% (25 of 25 strings)

Translation: Nebulo/Notification strings
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/notification-strings/de/

Currently translated at 100.0% (55 of 55 strings)

Translation: Nebulo/Changelogs
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/changelogs/de/

Currently translated at 100.0% (40 of 40 strings)

Translation: Nebulo/General strings
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/nebulo/de/

Currently translated at 100.0% (24 of 24 strings)

Translation: Nebulo/Notification strings
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/notification-strings/nl/

Currently translated at 100.0% (38 of 38 strings)

Translation: Nebulo/General strings
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/nebulo/nl/

Currently translated at 100.0% (80 of 80 strings)

Translation: Nebulo/Dialog strings
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/dialog-strings/nl/

Currently translated at 100.0% (50 of 50 strings)

Translation: Nebulo/Changelogs
Translate-URL: https://weblate.frostnerd.com/projects/nebulo/changelogs/nl/

Implements #91

Only show the battery optimization settings if the intent can be handled (on samsung devices with Android 6 for example it throws ActivityNotFoundException)

Bump fdroid version to 1.0-Beta (Build 35)

This update will only be pushed to the alpha channel and thus will not be publish to the fdroid repo.