Improved todo message when an issue is assigned to yourself.
- The new message when an user assign to himself an issue or a mr is: "You
assigned issue xx to yourself"
- The new message when an user adds a todo to himself is: "You added a
todo for issue xx"
- The new message when and user mention himself is: "You mentioned
yourself on issue xx"
- The new message when an user directly address himself is: "You
directly addressed yourself on issue xx"
- The new message when an user mark himself as an approver is: "You set
yourself as an approver for merge request xx"

Extended ProjectFinder in order to handle the following options:
 - current_user - which user use
 - project_ids_relation: int[] - project ids to use
 - params:
   -  trending: boolean
   -  non_public: boolean
   -  starred: boolean
   -  sort: string
   -  visibility_level: int
   -  tags: string[]
   -  personal: boolean
   -  search: string
   -  non_archived: boolean

GroupProjectsFinder now inherits from ProjectsFinder.
Changed the code in order to use the new available options.

Some inner page tabs where not scrollable like the top nav & this caused
them to break onto new lines mobile.

This pages include:

- dashboard/projects
- project -> merge_requests
- search
- project -> milestones
- project -> pipelines

Closes #18853

Instead of the JS being in charge of the HTML, the HAML now handles it.
The HAML can then check the cookie & show it needed. It also allows the
HAML access to the paths so we don't have to pass that through.

Closes #29955

Added the ability to 'Undo mark all as done' todos marked as complete with 'Mark all as done'
in the 'Todo' tab of the Todo dashboard.
The operation undos only the todo previously marked as done with the 'Mark al as done' button.

Added the ability to 'Undo' the todos marked complete in the 'Done' tab of the Todo dashboard.
Added the ability to 'Undo mark all as done' todos marked complete with 'Mark all as done'
in the 'Todo' tab of the Todo dashboard.

Make Sort dropdown behave the same as filters in narrower
viewports. Adjust dropdowns to fit on the same line in worst-case
scenario ("Oldest created" selected).

Closes #22562

See merge request !9533

Reuse same search form and behavior for dashboard#projects, group#projects
and admin#projects. Repsect all other options like sorting, personal
filter when search projects by name. Create FilterableList JS class to
handle identical behaviour of projects and groups lists.

This change also makes filtering and sorting availabe on explore#projects
and explore#groups no matter if you are logged in or not.
Signed-off-by: NDmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

Previously the search form just wasn't including any params that had previously been set, so when you filtered by name, it would reset all the params & therefore ignoring the archived param

Closes #28007

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

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

Now it appends a template instead of relying in a partial
to show it.

Also improved accesibility and change the id from user_callouts to a class

Also changed the user_callout haml to a partial and
added the corresponding SVG icon

Added a tooltip to the buttons that did not have any

Closes #28572

The Done button will change to an Undo button and the line item will be greyed out.
Bold links will be unbolded.
The user can undo the task by clicking the Undo button.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/24036