Web: Allow nullable columns and handle it accordingly

[phixMe]

Problem

We would display and empty oval in the case that column types were missing, this will display N/A in the case that we encounter it.

Checklist

• You've signed-off your work
• Your changes are accompanied by tests (if relevant)
• Your change contains a small diff and is self-contained
• You've updated any relevant documentation (if relevant)
• You've included a one-line summary of your change for the CHANGELOG.md (Depending on the change, this may not be necessary).
• You've versioned your .sql database schema migration according to Flyway's naming convention (if relevant)
• You've included a header in any source code files (if relevant)

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 82.97%. Comparing base (d407e66) to head (dabf20f).
Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #2896   +/-   ##
=========================================
  Coverage     82.97%   82.97%           
  Complexity     1485     1485           
=========================================
  Files           264      264           
  Lines          6849     6849           
  Branches        315      315           
=========================================
  Hits           5683     5683           
  Misses         1011     1011           
  Partials        155      155           

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