QuickNav jump improvements and support for searching for projects

[ciyer]

• The QuickNav jump function is restricted to member and starred projects. These are cached, so display of results is immediate.
• QuickNav also allows searching for projects.

Fix #353.

[rokroskar]

Tested, seems to work as advertised. A few comments/concerns.

1. there seems to be an overload of buttons:

The New Project and Search Buttons are almost on top of each other. Here I'm almost wishing for some central column of elements more evenly spaced (e.g. github does it this way). With the left-align it looks strange even on my 13" laptop:

Do we need the New Project button? I think the + drop-down is enough. Still, I think if the search bar is the only element on the page it needs to be a bit bigger/wider (ok, maybe this PR is not about styling).

2. clicking on Projects on the top navbar twice gives me the full project list (i.e. it seems to be the equivalent of clicking the search button without a search text).

Unrelated: I noticed now that the drop down items in the + drop down are not using the correct elements (compare with the rightmost drop-down).

[ciyer]

I don't really like the way this looks either, but I think it is a big usability improvement over the status quo. I think the better solution is to have 3 tabs on the project page: Yours, Starred, Explore (Yours would be projects where you are a dev or higher).

I think the New Project button is important for usability, esp for new users, and the tabs would resolve the aesthetic issues with the current solution.

[ableuler]

clicking on Projects on the top navbar twice gives me the full project list (i.e. it seems to be the equivalent of clicking the search button without a search text).

Noticed the same, not sure if this is a feature or a bug...

I agree with @ciyer that the caching of "your projects" and the ability to quickly switch between them adds some value. I would suggest to merge this PR and then move the search functionality into a separate tab later. Actually, the landing page is very close to what I would imagine the project page to look like.

While moving the project search into a separate tab, It would also be nice to make it a bit more powerful, for example enable searching for all projects of a given user (although there doesn't seem to be a straighforward api for this: https://gitlab.com/gitlab-org/gitlab-ce/issues/23185).

[rokroskar]

Ah yes agreed - apologies, I thought I approved this earlier. Can we make an issue for these improvements?

[ableuler]

Ah yes agreed - apologies, I thought I approved this earlier. Can we make an issue for these improvements?

I think #377 is about this.