release 0.3.3

[forrestguice]

• adds "Material You" app themes (api31+).
• adds support for show coordinates option (requires Suntimes v0.17.0+).
• adds exception handler and crash report notification; adds android.permission.POST_NOTIFICATION [permission].
• adds full backup rules for Android 12+.
• fixes widget reconfiguration (api28+) (drag widgets to reconfigure).
• fixes bug where help mirror url is incorrect (locale specific).
• refactors deprecated api (Preference, PreferenceFragment, PreferenceManager, FragmentContainer).
• updates build: adds nightly build flavor.
• updates translation to French (translation into French #43 by chfo-bidouille)

[forrestguice]

The plan is to tag this soon (next couple weeks).
There's also a nightly version available for testing it immediately.