front: intervals editor, display PRs and allow snapping

[clarani]

closes #4560

[codecov]

Codecov Report

Merging #4760 (f9aa39b) into dev (5a68101) will decrease coverage by 0.03%.
The diff coverage is 10.37%.

@@             Coverage Diff              @@
##                dev    #4760      +/-   ##
============================================
- Coverage     19.98%   19.95%   -0.03%     
  Complexity     2238     2238              
============================================
  Files           877      877              
  Lines         89695    89939     +244     
  Branches       2300     2300              
============================================
+ Hits          17926    17950      +24     
- Misses        70488    70708     +220     
  Partials       1281     1281              

Flag	Coverage Δ
front	9.53% <10.37%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files Changed	Coverage Δ
...editor/components/LinearMetadata/FormComponent.tsx	0.00% <0.00%> (ø)
...tions/editor/components/LinearMetadata/tooltip.tsx	0.00% <0.00%> (ø)
front/src/common/IntervalsDataViz/IntervalItem.tsx	0.00% <0.00%> (ø)
front/src/common/IntervalsDataViz/dataviz.tsx	0.00% <0.00%> (ø)
front/src/common/IntervalsDataViz/types.ts	0.00% <0.00%> (ø)
front/src/common/IntervalsDataViz/utils.ts	0.00% <0.00%> (ø)
...ont/src/common/IntervalsEditor/IntervalsEditor.tsx	0.00% <0.00%> (ø)
.../common/IntervalsEditor/IntervalsEditorTooltip.tsx	0.00% <0.00%> (ø)
front/src/common/IntervalsEditor/types.ts	0.00% <0.00%> (ø)
front/src/common/IntervalsEditor/utils.ts	0.00% <0.00%> (ø)
... and 2 more