front: prevent user from saving multiple times

[clarani]

close #5557

[codecov]

Codecov Report

Attention: 101 lines in your changes are missing coverage. Please review.

Comparison is base (ef61485) 19.57% compared to head (832f812) 19.57%.

Files	Patch %	Lines
...lications/editor/tools/rangeEdition/components.tsx	0.00%	48 Missing ⚠️
...lications/editor/tools/trackEdition/components.tsx	0.00%	24 Missing ⚠️
...ications/editor/tools/switchEdition/components.tsx	0.00%	21 Missing ⚠️
...lications/editor/tools/pointEdition/components.tsx	0.00%	3 Missing ⚠️
...rc/applications/editor/tools/pointEdition/tools.ts	0.00%	3 Missing ⚠️
front/src/common/Loader.tsx	33.33%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##                dev    #5696      +/-   ##
============================================
- Coverage     19.57%   19.57%   -0.01%     
  Complexity     2326     2326              
============================================
  Files           886      886              
  Lines        106100   106110      +10     
  Branches       2576     2576              
============================================
+ Hits          20774    20775       +1     
- Misses        83817    83826       +9     
  Partials       1509     1509              

Flag	Coverage Δ
front	8.33% <2.88%> (+<0.01%)	⬆️

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[SharglutDev]

Lgtm !