feat: Add Client peripheral permissions

Description

What? Added input permissions for each client (enable/disable mouse, keyboard, controller). Added a button to kick clients (does not prevent rejoin)

Why? I really like this project but wish that I could eventually use it to invite friends to play, just like Parsec. That is a larger piece of work - but a small step is to have configurable permissions per client. That is the aim of this PR

Screenshot

Haven't built this - am on Windows with Sunshine already installed. However the code is reasonably minimal and makes sense.

Issues Fixed or Closed

Roadmap Issues

Testing

Added tests covering the functionality. UI & BE.

Type of Change

• feat: New feature (non-breaking change which adds functionality)
• fix: Bug fix (non-breaking change which fixes an issue)
• docs: Documentation only changes
• style: Changes that do not affect the meaning of the code (white-space, formatting, missing semicolons, etc.)
• refactor: Code change that neither fixes a bug nor adds a feature
• perf: Code change that improves performance
• test: Adding missing tests or correcting existing tests
• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Other changes that don't modify src or test files
• revert: Reverts a previous commit
• BREAKING CHANGE: Introduces a breaking change (can be combined with any type above)

Checklist

• Code follows the style guidelines of this project
• Code has been self-reviewed
• Code has been commented, particularly in hard-to-understand areas
• Code docstring/documentation-blocks for new or existing methods/components have been added or updated
• Tests have been added or updated for new or modified functionality, including regression tests for bug fixes

AI Usage

See our AI usage policy.

• AI tools were used while preparing this PR

I am a developer, but I used AI to prepare this PR. I incrementally improve on the output until the code in a state that I am satisfied and would have written it by hand the same way...

For the tests - I give a bit less attention apart from just roughly scanning that they are doing what they are meant to.