Make "Get started with Builds" Help Page link work properly
`help_page_path('ci/quick_start', 'README')` causes a link to `https://gitlab.com/help/ci%2Fquick_start/README` which in turn breaks every relative link on the page. This remedies the problem.
That said, this is probably a horrible way of fixing this issue, *but* it does work. I can’t find much information on linking this deeply with Rails routes.
If anyone has suggestions as to a better way of handling this, I'll gladly take them. I tried a few different things, but none of them really worked.
Resolves #14872.
cc: @axil @rspeicher @elstamey
See merge request !3561
Optimize cross ref system notes check ## What does this MR do? This MR optimizes system note visibility checking by memoizing the visible reference count, reducing the overhead of calling `Note#cross_reference_not_visible_for?`. ## Are there points in the code the reviewer needs to double check? Note that since a cross reference message contains, "Mentioned in XYZ", we EXPECT that there is at least one reference. That's why using the ref count > 0 works. ## Why was this MR needed? The previous implementation relied on `Note#cross_reference_not_visible_for?`, which essentially tries to render all the Markdown references in a system note and only displays the note if the user can see the referring project. But this duplicated the work that Banzai::NotesRenderer was doing already. This shaves about 0.8 s from the load time from https://gitlab.com/gitlab-com/operations/issues/42. ## What are the relevant issue numbers? #19273 ## Screenshots (if relevant) ## Does this MR meet the acceptance criteria? - [x] [CHANGELOG](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CHANGELOG) entry added - [ ] [Documentation created/updated](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/development/doc_styleguide.md) - [ ] API support added - Tests - [x] Added for this feature/bug - [x] All builds are passing - [x] Conform by the [style guides](https://gitlab.com/gitlab-org/gitlab-ce/blob/master/CONTRIBUTING.md#style-guides) - [x] Branch has no merge conflicts with `master` (if you do - rebase it please) - [x] [Squashed related commits together](https://git-scm.com/book/en/Git-Tools-Rewriting-History#Squashing-Commits) See merge request !5070
Added day name to contributions calendar ## What does this MR do? Adds the day name text into the contributions calendar tooltip. ## What are the relevant issue numbers? Closes #19367 ## Screenshots (if relevant)  See merge request !5065
have been fully redacted and contain cross-project references. The previous implementation relied on Note#cross_reference_not_visible_for?, which essentially tries to render all the Markdown references in a system note and only displays the note if the user can see the referring project. But this duplicated the work that Banzai::NotesRenderer was doing already. Instead, for each note we render, we memoize the number of visible user references and use it later if it is available. Improves #19273
Remove pinTo from Flash ## What does this MR do? - replace `pinTo` of `Flash` by `parent` parameter in constructor - move positioning of layout containers from CoffeeScript to layout files - adjust styling of inline flash messages ## Are there points in the code the reviewer needs to double check? - display of flash messages in general ## Why was this MR needed? - allow finding and positioning flash message containers within layout files - allow adding different CSS classes to flash containers within layout files (necessary for fixing #18908) - allow multiple flash messages to be displayed at different places at the same time - make inline flash messages look nicer ## What are the relevant issue numbers? closes #18908, closes part of #18897 ## Screenshots ### Inline flash message (before)   ### Inline flash message (after)   ### Other flash messages (after)  ---  ---  ---  ---  ---  --- ### This is possible now  See merge request !4854
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