Fixed colour of dropdown link hover

See merge request !3596
Fix labels not displayed on todos page
closes #14512,#13920
# For Todos
## Before

## After

# For Activity Feed
## Before

## After

See merge request !3371
Fix scroll bars shown in Revert dialogue box
## What does this MR do?
Eliminate scroll bars shown in Revert dialogue box, see the screenshots.
## Are there points in the code the reviewer needs to double check?
N/A
## Why was this MR needed?
Ugly scroll bars are shown in Revert dialogue box.
## What are the relevant issue numbers?
N/A
## Screenshots

See merge request !3532
Updated UI for new merge request
Closes#2540


See merge request !3228
Wrap code blocks to next line
Closes#14866

See merge request !3573
Search Design fixes
Closes#14800
- Use colors according to design
- Fix width of search input


See merge request !3475
Update shades of red
Closes#14342
Before:

Fixed:

See merge request !3549
Added bottom margin to CLI instructions
The CLI instructions block in the empty project page is missing a margin-bottom style property. I added it, you can review the only line I edited to add this.
This only fixes a UX bug (to me), related to the "Remove project" button that is not correctly padded. Now I believe that part look better :)
I attach screenshots.
### before

### after

See merge request !3505