Adding hover indicator for unselected tabs

[mvm-sap]

Hover indicators are included in both Dark and Light theme for unselected tabs in views and editors.
Light theme,
Editor tab's hover color is set to white
View tab's hover color is set to darker grey

Dark Theme,
Both Editor and View tab's hover color is set to darker black

Please find the details of this issue reported in #2114

[github-actions]

Test Results

 1 815 files  +  605   1 815 suites  +605   1h 32m 1s ⏱️ + 39m 2s
 7 684 tests ±    0   7 455 ✅  -     1  228 💤 ±  0  1 ❌ +1 
24 213 runs  +8 071  23 463 ✅ +7 790  749 💤 +280  1 ❌ +1 

For more details on these failures, see this check.

Results for commit ce7a011. ± Comparison against base commit 944c8db.

♻️ This comment has been updated with latest results.

[HeikoKlare]

Looks great on Windows. I had no chance to test on MacOS yet.

[HeikoKlare]

Also looks good on MacOS. If no one objects, I would like to merge this until end of today to have some hovering indicator again.

[laeubi]

For visual changes it is always good to include before/after in the PR so it is easier for those that don't have that specific OS at hand :-)

Also I find it easier for reviewers as one then can directly comment on the provided screenshot.

[HeikoKlare]

For visual changes it is always good to include before/after in the PR so it is easier for those that don't have that specific OS at hand :-)

Also I find it easier for reviewers as one then can directly comment on the provided screenshot.

Fully agree. @mvm-sap, it would be great if you could share before/after screenshots already when opening the PR.

For this one, since I have tested the change anyway, here are some screenshots showing what happens when hovering over the "Progress" view tab (in the bottom view stack):

Windows (light)

Before

After

Windows (dark)

Before

After

MacOS

Same as on Windows, thus only providing dark mode screenshots

Before

After

[HeikoKlare]

Failing test is unrelated and already documented: #294