Egui 0.28 update fixes

[white-axe]

Connections

• Update egui to 0.28.1 #143

Description
This fixes some problems caused by the egui update in #143, namely the preset visuals tab in the preferences causing a panic and the wrap modes of several of the menus being broken.

I also updated the time crate to fix a compilation error when using certain new Rust compiler versions and fixed a problem where blank lines sometimes appear at the bottom of the filesystem debug window, although these problems existed before the egui update.

Testing

• The preset visuals tab in the preferences shouldn't cause a panic anymore.
• None of the items in any of the menus, e.g. the menus in the top bar, the database editor dropdown menus and the "Cursor blinking" setting in the terminal settings in the preferences, should have wrapping text anymore.
• There should be no blank lines at the bottom of the filesystem debug window when opening a project with the standard RTP for RPG Maker XP placed in the RTP subdirectory of the project directory.
• It should be possible to compile Luminol with nightly Rust versions later than 2024-05-19.

Checklist

• Run cargo fmt.
• Run cargo clippy. If applicable, add:
  • --target wasm32-unknown-unknown -Z build-std=std,panic_abort
• Run cargo build --release
• If applicable, run trunk build --release