[frontend] Due Date Item alignement and design (#14599)

[Archidoit]

Proposed changes

• In tasks list of a case overview: align column content and put the Due Date in a Tag (v7 ui consistancy with other chips)

• Replace some '-' with the EMPTY_VALUE constant in item components

• ItemScore component turned to tsx

• Remove useless TasksLine component

Related issues

#14599

[codecov]

Codecov Report

❌ Patch coverage is 5.26316% with 18 lines in your changes missing coverage. Please review.
✅ Project coverage is 32.36%. Comparing base (c6c09ac) to head (0267921).
⚠️ Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
...rivate/components/cases/tasks/tasksDataColumns.tsx	0.00%	9 Missing ⚠️
...tform/opencti-front/src/components/ItemDueDate.tsx	0.00%	3 Missing ⚠️
...rm/opencti-front/src/components/ItemLikelihood.tsx	0.00%	1 Missing ⚠️
...orm/opencti-front/src/components/ItemOpenVocab.tsx	0.00%	1 Missing ⚠️
...form/opencti-front/src/components/ItemPriority.tsx	0.00%	1 Missing ⚠️
...latform/opencti-front/src/components/ItemScore.tsx	50.00%	1 Missing ⚠️
...form/opencti-front/src/components/ItemSeverity.tsx	0.00%	1 Missing ⚠️
...encti-front/src/private/components/cases/Tasks.tsx	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #14602   +/-   ##
=======================================
  Coverage   32.36%   32.36%           
=======================================
  Files        3097     3097           
  Lines      210990   210971   -19     
  Branches    38237    38233    -4     
=======================================
- Hits        68283    68280    -3     
+ Misses     142707   142691   -16     

Flag	Coverage Δ
opencti-client-python	45.50% <ø> (ø)
opencti-front	2.83% <5.26%> (-0.01%)	⬇️
opencti-graphql	67.73% <ø> (ø)

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