[pomodoro][FEATURE] Pomodoro ticking sound

[mimavox]

Submission checklist

• I have searched existing issues and confirmed this has not been requested before.
• I have checked existing pull requests for similar changes.
• This is about a community plugin, not about Noctalia itself (those belong in the noctalia repo).

Plugin

pomodoro

Feature type

New functionality

Feature summary

Please include a ticking sound that can be played during sessions.

Motivation / use case

A ticking sound helps me a lot to get into "the zone" when working.

Proposed solution

Add a ticking sound.

Alternatives considered

No response

References / related projects

No response

Additional context

No response

[github-actions]

CC @thepunkoff