Add Support for form-content Insertion Point For Prompt Partials in PromptManager

[developerkunal]

🔧 Changes

Added support for the form-content insertion point in PromptManager.

• Introduced InsertionPointFormContent to represent the form-content insertion point.
• Allows for better customization of prompt partials.

📚 References

• Set Prompt Partials

🔬 Testing

• Manually tested integration with existing prompt partials.

📝 Checklist

• All new, changed, or fixed functionality is covered by tests (or marked N/A).
• Documentation has been updated for all new/changed functionality (or marked N/A).

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.51%. Comparing base (f6ddd7e) to head (253f111).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #503   +/-   ##
=======================================
  Coverage   95.51%   95.51%           
=======================================
  Files          57       57           
  Lines       11018    11018           
=======================================
  Hits        10524    10524           
  Misses        373      373           
  Partials      121      121           

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