feat: DIA-1924: "Import sample data" ability in the Data Import page

[matt-bernstein]

[x] add sample data import component
[x] add configurable manifest file with sample data
[x] create default manifest file with data hosted on our s3

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[nick-skriabin]

/fm sync

Workflow run

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 6 lines in your changes missing coverage. Please review.

Project coverage is 77.18%. Comparing base (0aec72b) to head (20008e0).
Report is 10 commits behind head on develop.

Files with missing lines	Patch %	Lines
label_studio/jwt_auth/views.py	20.00%	4 Missing ⚠️
label_studio/core/utils/sentry.py	0.00%	1 Missing ⚠️
label_studio/projects/functions/next_task.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7206   +/-   ##
========================================
  Coverage    77.17%   77.18%           
========================================
  Files          187      187           
  Lines        14499    14504    +5     
========================================
+ Hits         11190    11195    +5     
  Misses        3309     3309           

Flag	Coverage Δ
pytests	77.18% <66.66%> (+<0.01%)	⬆️

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[bmartel]

small observation on the package.json, and I agree with the other feedback that we should look to make the hooks in the same way to align with the existing.

[matt-bernstein]

Sample 1 (images) is not actually importing - looking into it. Sample 2 works.

edit: fixed

[nick-skriabin]

@yyassi-heartex @bmartel @nass600 please, take another look