Fixed some Rust code structure and modified the workflow to fail if clippy returns warnings

[adamperkowski]

Type of Change

• [x] Refactoring

Description

Changed the unnecessary then & unwrap_or to an if statement. Modified the Rust workflow to fail if clippy returns warnings

Checklist

• [x] My code adheres to the coding and style guidelines of the project.
• [x] I have performed a self-review of my own code.
• [x] My changes generate no errors/warnings/merge conflicts.

[lj3954]

Making the title variable mutable and appending the " [Multi-Select]" str afterwards would probably be more readable.

[adamperkowski]

Making the title variable mutable and appending the " [Multi-Select]" str afterwards would probably be more readable.

Doing it like this may be less readable but it's better for the code. title doesn't need to be mutable.

[lj3954]

If you want to avoid mutability, you could perhaps try something like this instead: https://github.com/lj3954/linutil/commit/8d7f2b7455b9183ab70c40d9a58a58591d4f4938.

[adamperkowski]

If you want to avoid mutability, you could perhaps try something like this instead: lj3954@8d7f2b7.

Good idea. Thanks.