4174: Hide the keyboard after submit search

[bahaaTuffaha]

Short Description

During user testing on Android devices, users expected the on-screen keyboard to close automatically after submitting a search query.

Proposed Changes

• Used onKeyDown prop with if statement to check if the user pressed 'enter' to .blur() the focus so the keyboard hides.

Side Effects

N/A

Checklist

• Followed the contributing guidelines and conventions
• Considered accessibility impacts and made the necessary adjustments
• Added or updated unit tests (if applicable)
• Added or updated documentation (if applicable)
• Added a release note for native (if applicable)

Testing

• Launch the web app + run an android emulator to test it.
• Test any search input by typing something then hit enter on the keyboard.
• Note if the this error appeared : globalThis.crypto.randomUUID is not a function just add ?. after crypto at chat.ts (this issue happens on emulated devices only).
• For iOS you can enable the physical keyboard from I/O -> keyboard -> toggle software keyboard (at the simulator).

Resolved Issues

Fixes: #4174

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