Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Revert side nav to full width; remove border under nav; remove tooltips on nav links; stop page content shifting with side nav; put project nav in container

Updated CHANGELOG

Removed CHANGELOG entry

Fixes the bottom margin of .nav-controls > form (issues list search/filter form) so when a guest views on the field on mobile it is not squished against the issues list

Updated CHANGELOG

navigation tabs and navigation filter search will now stay on the same row until there is no space to

Removed unneeded media queries

Add fade out to left side of layout nav; remove dropdown nav helper; remove controls button from mobile

This fixes issues where group inputs would be above the dropdown in the nav

Closes #17524

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

This improves the filtering of issues and merge requests by creating a single file that encapsulates all the filtering. Previously this was done with a file for issues and a file for merge requests.

Created the ability for the text search to be done alongside other filterables. Previously because this was outside the filterable form, this wasn't possible and would instead do either filter dropdown or text filter - not both.

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Main idea is to keep left sidebar static so user is not confused by
changing context. Instead we put changing navigation with changing
content in one main block
Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>