Feature/visited url always

[acelaya]

Closes #1330

Shlink has been tracking the visited URL for non-orphan visits since this feature was introduced, but the information has never been exposed for that kind of visits.

This PR ensures the visitedUrl is exposed for domain, tag, non-orphan and short URL visits.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.35%. Comparing base (e028d8e) to head (b4c46ce).
Report is 3 commits behind head on develop.

Additional details and impacted files

@@            Coverage Diff             @@
##             develop    #2070   +/-   ##
==========================================
  Coverage      97.35%   97.35%           
- Complexity      1342     1343    +1     
==========================================
  Files            251      250    -1     
  Lines           4765     4772    +7     
==========================================
+ Hits            4639     4646    +7     
  Misses           126      126           

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