[Unitary-Hack][Sub-ir-task_result] Doc strings in submission/ir/task_result.py

[Manvi-Agrawal]

Fixes #957

Rendered documentation

bloqade-sub-ir-task-result.pdf

[Manvi-Agrawal]

@Roger-luo , I have checked that this PR follows the discussion and feedback in #970. Could you please take a look?

[weinbe58]

These look good but you need to remove the indentation for multiline doc strings. I know it looks bad but it will look bad when rendering the documentation online.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.91%. Comparing base (0692d05) to head (171080c).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #979      +/-   ##
==========================================
+ Coverage   89.90%   89.91%   +0.01%     
==========================================
  Files         110      110              
  Lines        8132     8132              
==========================================
+ Hits         7311     7312       +1     
+ Misses        821      820       -1     

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