[BUGFIX] Fix displaying for missing title

[beatrycze-volk]

Changes:

• send only one list of documents to the view
• send to the view count for results and documents
• force iteration over SOLR results to call getTitle() function placed in offsetGet() function

Depends on #1526

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 0.00%. Comparing base (7962abf) to head (ce0e821).
Report is 1 commits behind head on 5.0.x.

Additional details and impacted files

@@      Coverage Diff      @@
##   5.0.x   #1557   +/-   ##
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