chore: various fixes / clippy lints

[joshka]

• chore: set msrv to 1.74
• chore: move shared config to tui-widgets
• chore: use workspace package metadata
• fix: various clippy lints

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 0.00%. Comparing base (2563207) to head (408f9aa).

Files	Patch %	Lines
tui-prompts/src/text_prompt.rs	0.00%	1 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #6 +/- ## ===================================== Coverage 0.00% 0.00% ===================================== Files 4 4 Lines 287 283 -4 ===================================== + Misses 287 283 -4 ```

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