fix(bar): normalize areas of widgets

[alex-ds13]

This commit changes the way each of the 3 parts of potential widgets (left, center and right) is created so that they are all done on the same way and look the same. It is using Area with different anchors for each part which makes the widgets actually center vertically properly.

This created an issue with the Bar grouping. To fix it we've made the Bar grouping change the outer panel frame instead of creating an actual group. This has the side effect (or maybe feature!) of losing the background of the outer frame. Meaning this outer frame will now have the look of the Bar grouping only. Currently it is using a fixed outer margin but this can be changed in the future to a config option.

[LGUG2Z]

error: this function has too many arguments (9/7)
   --> komorebi-bar\src\komorebi.rs:494:5
    |
494 | /     pub fn handle_notification(
495 | |         &mut self,
496 | |         ctx: &Context,
497 | |         monitor_index: usize,
...   |
503 | |         default_theme: Option<KomobarTheme>,
504 | |     ) {
    | |_____^
    |
    = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#too_many_arguments
    = note: `-D clippy::too-many-arguments` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::too_many_arguments)]`

This is fine to annotate with #[allow(clippy::too_many_arguments)]

[CtByte]

My shaking is gone when I change the layout for the right alignment like this:

There is some spacing issue I need to look into, but at least the shaking is gone. The spacing is easily seen by adding "widget_spacing": 20, to the config. You can also see this on the video with the interface section

Recording.2024-12-19.095609.mp4

[alex-ds13]

Should be ready to merge now. But if you can do a quick test first on your system can't hurt to make sure this last commit didn't break anything elsewhere.