[backend] Sharing saved filters APIs (#11624)

[Archidoit]

Proposed changes

• APIs to share saved filters under SHARE_FILTERS FF
• associated backend tests

Related issues

partially fixes #11624

[codecov]

Codecov Report

❌ Patch coverage is 95.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 34.89%. Comparing base (37fdf25) to head (207faf5).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
...phql/src/modules/savedFilter/savedFilter-domain.ts	92.59%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #16044   +/-   ##
=======================================
  Coverage   34.88%   34.89%           
=======================================
  Files        3211     3211           
  Lines      219359   219391   +32     
  Branches    40715    40718    +3     
=======================================
+ Hits        76514    76547   +33     
+ Misses     142845   142844    -1     

Flag	Coverage Δ
opencti-client-python	46.36% <ø> (ø)
opencti-front	3.45% <ø> (ø)
opencti-graphql	71.81% <95.00%> (+0.01%)	⬆️

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