Fixed issues with renaming

- summary is now untouched on rename instead of bogus incrementation
- fixes "Share" status icon by only triggring "fileActionsReady" once
- row is now reinserted even when rename is cancelled, this removes the
  hacky/buggy code that tried to rename the element back
- added unit tests to cover the fixed cases
Merge pull request #8612 from owncloud/share-updateshareiconsafterrename

[master] Fixed issues with renaming