add clear filters button

[CollinBeczak]

Additional of clear filters button and extra rule in if statement to handle tasks with no url filtering.

[codecov-commenter]

Codecov Report

Merging #2094 (3c2d83f) into develop (8c1805f) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

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@@             Coverage Diff             @@
##           develop    #2094      +/-   ##
===========================================
- Coverage    24.90%   24.89%   -0.01%     
===========================================
  Files          640      640              
  Lines        21757    21760       +3     
  Branches      6651     6651              
===========================================
- Hits          5418     5417       -1     
- Misses       13688    13692       +4     
  Partials      2651     2651              

Files Changed	Coverage Δ
...lteredClusteredTasks/WithFilteredClusteredTasks.js	1.80% <0.00%> (ø)
...ReviewNearbyTasksWidget/ReviewNearbyTasksWidget.js	4.22% <0.00%> (-0.19%)	⬇️

... and 1 file with indirect coverage changes

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