Nupur Agarwal: GSoC PMA: week 9

Converted the ul’s on the top of some pages to navs.
Also worked on the top bar of the pages.
Added more commits to the earlier opened PR’s of tables, forms.
With these, I have dealt with most of the elements. Now, will look at the final improvements and required changes.
The PR related to the navs class is:
-> https://github.com/phpmyadmin/phpmyadmin/pull/15419