First open-source contribution: Fix UI positioning of send and cancel buttons for right-handed accessibility

[Kavibhagya30]

First time contributor checklist

• I have read how to contribute to this project
• I have signed the Contributor License Agreement

Contributor checklist

• I am following the Code Style Guidelines
• I have tested my contribution on these devices:
  • (Unable to test directly due to limited setup)
• My contribution is fully baked and ready to be merged as is
• I ensure that all the open issues my contribution fixes are mentioned in the commit message of my first commit using the Fixes #1234 syntax

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Description

This is my first open-source contribution!

I noticed an issue with the positioning of the send and cancel buttons in the Signal app, where right-handed users experienced difficulty due to the buttons being placed too far apart, making it tricky to interact with them one-handed. The cancel button was also placed near the send button, causing accidental presses.

Fix:

• Repositioned the send button closer to the middle for easier one-handed use.
• Moved the cancel button slightly to prevent accidental presses.

As I am unable to test the changes directly due to setup limitations, I am submitting this PR with the assumption that it addresses the described UI issue. Further testing can be done by contributors or maintainers to verify the effectiveness of the fix.

I hope this helps improve the accessibility and usability of the Signal app for right-handed users.

[Kavibhagya30]

Greetings maintainers,
This is my first open-source contribution, and I'm really glad to contribute to this project. I noticed a UI issue related to the positioning of the send and cancel buttons for right-handed accessibility that was reported in the Issues section, and I’ve submitted this PR as a fix for it.

Currently, two workflows are awaiting approval. Kindly review and approve them when convenient so that the validations can proceed.

Thank you for your time and support!

[alex-signal]

@Kavibhagya30 Could you please include a screenshot of this solution?

[Kavibhagya30]

Thank you for considering my first contribution the screenshot of the solution in the program is attached to this email

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[alex-signal]

@Kavibhagya30 Doesn't seem to have come through, you might need to just post it through github.