Hebrish for Android v0.6.0

0.6.0: a setup checklist, a side menu, simpler models, and a tidier voice keyboard.

• Setup checklist (home, and the side menu): every step in order, each ticking itself off: microphone, a model, the voice keyboard or floating mic, battery unrestricted, "Pause app activity if unused" off, and optional all files access. The same steps with pictures: hebrish.app/setup.
• Side menu (☰ on home) with every screen, Explore the lexicon, Contribute and a new About page. The app and model versions are at the bottom of home and the menu.
• Models as cards, each with its mark: Jachnun (English + Hebrew vocabulary) first and recommended, Sabich (Hebrew + tech vocabulary), stock Parakeet last. A new install uses Jachnun; an existing install keeps the model it has.
• Model location always shows where the models are, the default included. Back to the default copies them back into app storage.
• Voice keyboard: the mic sits at the top, with the Hebrish mark and a settings gear above it; comma and full stop keys beside space, delete and enter.
• Retake you can see: the mic and bar flash amber, say "↺ New take" and the mic spins back once. The mic pulses while recording.
• Optional beeps when a take starts (rising), stops (falling) and restarts (double pip); vibration on by default. Settings → Sound, microphone and buttons.
• The microphone in use is shown next to the timer. Choose one, or leave it on Automatic: a Bluetooth headset is always preferred.
• Start, stop, restart, pause and discard from outside the app: broadcast intents for Tasker, MacroDroid and Key Mapper, or learn a key from a Bluetooth shutter remote or keyboard. After upgrading, turn the floating mic off and on once so it can see buttons. Reference: docs/external-control.md.
• Floating mic: placeholder text such as WhatsApp's "Message" is replaced instead of left in front of your words (setting, on by default).
• Not yet tested on a device. arm64-v8a only. Android 9+. Downloads: hebrish.app/download.