add pagination to client and project table

[Onatcer]

client-side project, task, client optimisations to handle bigger data collections, mostly caused by the DOM-Rendering / Component construction

• client-side pagination for projects and clients table
• virtualiser for Project-Task-Dropdown

#1138

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.17%. Comparing base (50f57f6) to head (c0f5baa).
⚠️ Report is 6 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##               main    #1140   +/-   ##
=========================================
  Coverage     89.17%   89.17%           
  Complexity     2003     2003           
=========================================
  Files           282      282           
  Lines          9848     9848           
=========================================
  Hits           8782     8782           
  Misses         1066     1066           

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