Text field disappears on iPad

[angloromanticism]

Tested on iPadOS 18:

1. Chat window views properly when iPad keyboard is hidden, but top of text field is moved "up" off screen when keyboard is out: can't see any beginning chats while typing.
2. Keyboard auto hides on every 'send' instance, too, which is cumbersome for sending multiple messages and distracting UX

Neither of which is native Delta.Chat behavior. By contrast, CryptoWhisper .xdc keyboard implementation and text window seems to be working fine