[Doc] update SAR status

[AllentDan]

Fixed SAR exporting for TorchScript. Updated the status of SAR.

[grimoire]

LGTM

[RunningLeon]

@AllentDan Could you rebase to main branch? CI error is fixed on main branch.

[RunningLeon]

could fix ci errors

[RunningLeon]

@AllentDan Could sync with latest main branch.

[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (58bcdae) 49.44% compared to head (6ef8a03) 49.44%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1789   +/-   ##
=======================================
  Coverage   49.44%   49.44%           
=======================================
  Files         338      338           
  Lines       12920    12920           
  Branches     1897     1897           
=======================================
  Hits         6388     6388           
  Misses       6088     6088           
  Partials      444      444           

Flag	Coverage Δ
unittests	49.44% <0.00%> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ebase/mmocr/models/text_recognition/sar_decoder.py	76.52% <0.00%> (ø)
...ebase/mmocr/models/text_recognition/sar_encoder.py	59.25% <0.00%> (ø)

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[RunningLeon]

LGTM