F4089: Fullscreen toggle appearance

[bilalesi]

Fixes #BlueBrain/nexus#4089

Description

How has this been tested?

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added necessary unit and integration tests.
• I have added screenshots (if applicable), in the comment section.

[codecov-commenter]

Codecov Report

Merging #1356 (cd56610) into develop (1a6d489) will increase coverage by 0.05%.
The diff coverage is 78.10%.

@@             Coverage Diff             @@
##           develop    #1356      +/-   ##
===========================================
+ Coverage    47.76%   47.82%   +0.05%     
===========================================
  Files          241      243       +2     
  Lines        10714    10716       +2     
  Branches      2505     2515      +10     
===========================================
+ Hits          5118     5125       +7     
+ Misses        5564     5559       -5     
  Partials        32       32              

Files Changed	Coverage Δ
...red/components/ResourceEditor/useEditorTooltip.tsx	3.80% <0.00%> (-0.80%)	⬇️
...rGraphFlowContent/DataExplorerGraphFlowContent.tsx	91.66% <ø> (ø)
src/subapps/dataExplorer/ProjectSelector.tsx	96.96% <ø> (ø)
...rc/shared/components/ResourceEditor/editorUtils.ts	18.08% <19.23%> (+0.69%)	⬆️
src/subapps/dataExplorer/PredicateSelector.tsx	96.52% <50.00%> (+0.02%)	⬆️
src/utils/validUrl.ts	38.46% <50.00%> (ø)
...pps/dataExplorer/DataExplorerCollapsibleHeader.tsx	98.21% <98.21%> (ø)
...as/DataExplorerGraphFlow/DateExplorerGraphFlow.tsx	94.64% <100.00%> (+0.76%)	⬆️
src/shared/components/Icons/FilterIcon.tsx	100.00% <100.00%> (ø)
...rc/shared/components/ResourceEditor/CodeEditor.tsx	100.00% <100.00%> (ø)
... and 5 more

... and 71 files with indirect coverage changes