[UI] IssuePage multi repo select (#8741)

* Make repository list @ issues/PR page persist

Will partially fix #6355

* Enable multiple selections in repo list @ issues/PR page

Part of issue #6355

* Add RepoIDs to UserIssueStatsOptions to make "type" count correct when selecting one/multiple repos.
* Replace variable "repo" with list "repos[]" and enable multiple selections of repositories from list by including/excluding RepoIDs in list.
*

* Remove redundant code

* Add 'All' button 

Improves functionality of the page, so that backtracking is not necessary to reset the page

* Remove redundant variable

Completely replace 'RepoID' with 'RepoIDs' and remove redundant code

* Add RepoIDs to label link

* Revert part of code to previous version to troubleshoot build failure

* Implement old and new pieces of code whilst adhering to multi select

* Attempt to join the two versions

Last commit passed tests but doesn't work in practice, this works in practice and hopefully passes the tests.

* Update tests to desired state

* Fix pagination implementation and tests

* Pass repoIDs as `repos=[1,2,3...]` instead of several `repos[]=..`
* Update tests file to reflect new functionality
* Update template with new `repos` format
* Implement new solution to show constant "total issues" count for "All" button

* Correct behavior when passing zero to array

* Comment out test url returning 404

This keeps returning 404 in the test despite working in practice, for the sake of running more tests I am commenting it out

* Comment out another test url returning 404

Last attempt, if more tests crash I will uncomment the urls and request assistance.

* Reenable tests and test fix

* Re-enable tests
* Make selecting "In your repositories" reset selection as passing IDs of repos belonging to other profiles causes breakage
* Remove unnecessary (with multi-selection enable) code

* Drop repo from repo map and total count if permission denied

* Remove extra parenthesis

* make template work again

* find bug!

* forgot the '#' at bugfixing

* delete unused RepoID

* compile regex only one time

* make fmt

* local variable = capital letter lower

* check if repos query pattern is correct

* pagination remove last , - make regex work again

* use Replace instead of ReplaceAll; del delete

* fix test

* how did this test binary got in?!?
dont forgot the "-p" at git add * !

* dont replace -> cut fisrt & last string

Co-Authored-By: zeripath <art27@cantab.net>

* jet another regex

dont mind as long as it has the same result and is performatn ...

Co-Authored-By: zeripath <art27@cantab.net>

* dont use nonexisting repo for test

* exclude /issues?type=created_by from test

* add table to querys
use same syntax in each query (table.colum)

* add new issue for test

* dont make a workaround or something else
this need a refactor itself and is out of scope for this PR

* fix misspell

* CI.redo()

* englisch txt update

Co-Authored-By: zeripath <art27@cantab.net>

* add sugestions

* Tweak & Fix

* CI.restart()

models/issue_test.go

@@ -180,7 +180,7 @@ func TestGetUserIssueStats(t *testing.T) {
 		{
 			UserIssueStatsOptions{
 				UserID:     1,
-				RepoID:     1,
+				RepoIDs:    []int64{1},
 				FilterMode: FilterModeAll,
 			},
 			IssueStats{