[RobertoTired]

Allow sending of message using Enter key on physical keyboard. A parameter toggle has been added to switch between 'Enter to send / Enter + Shift for multiline' and 'Enter for multiline / Ctrl + Enter to send'.

• AI has been used to generate translation for all languages except English and French, and it help me creating the unit test.
• I have added a parameter to the top level parameter screen, I can move it where you want.
• Tested on emulator and also on my physical Pixel 8, both in desktop mode with physical usb keyboard and in regular mode with soft keyboard.
• If this PR is approved, I will try to fix also small anoying bugs when used in desktop mode (for example using arrow in text field may get the focus out of the text field).
• Using Shift Enter or Ctrl Enter seems to be a "standard" on other messaging application (Signal and Teams for example).
• I am quite new in android development (but not in Java), feel free to ask me to change anything (or remove it :))
  Thanks

[RobertoTired]

Not sure how to fix the Instrumented tests (Android 17 x86_64) issue... I run ./gradlew :app:connectedDebugAndroidTest with a local emulator and I got no issue