Implement UI Improvement for Single Repo App Index

Merged username-removed-124398 requested to merge NicoAlt/repomaker:141-repo-apps-improvement into master

App edit had hard dependencies to the drag and drop area in repo index, therefore this got a little bit larger.

Empty

Screen_Shot_2017-06-26_at_12.03.33

Three apps

Screen_Shot_2017-06-26_at_12.03.02

Pagination => Search

I'm not confident with the large white space at the top but because of the input field this space is sometimes necessary.

Screen_Shot_2017-06-26_at_12.02.32

App edit

Screen_Shot_2017-06-26_at_12.02.19

Non-JS Fallback

Screen_Shot_2017-06-26_at_12.13.10

Edited by username-removed-124398