Remove old icons and graphics

[JasonWildMe]

Removes unused, legacy images.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 4.06%. Comparing base (3513d0f) to head (4e11e2f).

Additional details and impacted files

@@           Coverage Diff           @@
##              main   #1133   +/-   ##
=======================================
  Coverage     4.06%   4.06%           
  Complexity     257     257           
=======================================
  Files          590     590           
  Lines        64612   64612           
  Branches     11542   11533    -9     
=======================================
  Hits          2627    2627           
  Misses       61825   61825           
  Partials       160     160           

Flag	Coverage Δ
backend	4.06% <ø> (ø)
frontend	4.06% <ø> (ø)

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[naknomum]

spot-checked references to a few of these and seemed unused, so just trusting the rest. :)