Feature: Updated the Status Bar design

[yaira2]

Resolved / Related Issues

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• Updated the Status Bar design
• This is prep work for completely floating panes

Steps used to test these changes

Stability is a top priority for Files and all changes are required to go through testing before being merged into the repo. Please include a list of steps that you used to test this PR.

1. Confirmed the corner radius is set to 0 when the sidebar is collapsed
2. Confirmed the sidebar resizer height matches the border height
3. Confirmed the border thickness is correct when Dual Pane mode is enabled
4. Confirmed the border thickness is correct when the Info Pane is opened

Screenshots

[marcelwgn]

LGTM. I'm a bit concerned that if all items are expanded, there is no visual separator between the footer content and the sidebar items, but I think that is quite hard to solve. Overall, I think it looks quite well though.

Besides that, I think its good. I'm not too happy with the name FooterContent (since Footer is also something one could expect in the left pane) but I also can't think of anything more fitting.

[0x5bfa]

Yair is going to add Settings button as a pane footer.

As I agree with @marcelwgn on that, it should be renamed to 'ContentFooter' and pane one to be 'PaneFooter'.