Amethyst 0.51.0: Zap Amounts on Notifications

- Adds Zap amounts to Notification bubbles.

- Adds ImmutableLists to avoid recompositions

- Moves NavController to a lambda to avoid recompositions

- Moves AccountViewModel builder to a ViewModel Factory to avoid recompositions

- Reduces notifications invalidation requests when starting the screen

- BugFix on Orbot's view count url leak

Download:

- Play Edition with Push Notifications & Translations: https://github.com/vitorpamplona/amethyst/releases/download/v0.51.0/amethyst-googleplay-universal-v0.51.0.apk

- F-Droid Edition without Translations: https://github.com/vitorpamplona/amethyst/releases/download/v0.51.0/amethyst-fdroid-universal-v0.51.0.apk