Fix error loading page when no contacts

[skjnldsv]

Did a mistake with the new loading fix (ref #323)
When you don't have any contacts, loading the page generate an error and doesn't load further.

[mention-bot]

By analyzing the blame information on this pull request, we identified @Henni, @DeepDiver1975 and @irgendwie to be potential reviewers

[codecov-io]

Current coverage is 10.91%

Merging #347 into master will not affect coverage as of e01603c

@@            master    #347   diff @@
======================================
  Files           41      41       
  Stmts          751     751       
  Branches         0       0       
  Methods          0       0       
======================================
  Hit             82      82       
  Partial          0       0       
  Missed         669     669       

Review entire Coverage Diff as of e01603c

---

Uncovered Suggestions

1. +2.13% via ...ntactColor_filter.js#3...18
2. +2.00% via ...dressBook_service.js#148...162
3. +1.60% via ...ntactColor_filter.js#23...34
4. See 7 more...

Powered by Codecov. Updated on successful CI builds.

[DeepDiver1975]

👍