FooterToolbar: Match also padding to the modules' buttons
Set the padding in the sidebar footer to match the value of the breeze default padding (6px), so the "Highlight Changes" button is consistent with the footer buttons in the modules.
The value is hardcoded for now, until we can get the margin values from the QStyle (the same existent comment applies).
| BEFORE |  |
|---|---|
| AFTER |  |
Edited by Ismael Asensio