Updating description for create_pull_request_thread

[krid-583]

• When adding a suggestion through create_pull_request_thread in PR's, sometimes the tool collects the length of the suggested_content and marks the comment to that portion of the line which ends up being different from the user's intent.

Example:

Actual Line:      - //padding: functions.toRem(8) functions.toRem(16);
SuggestedContent: + padding: functions.toRem(8) functions.toRem(16);6);

• Also the API used for creating this considers the rightFileEndOffset as an exclusive value and ignores the character in last position

The offset used here is 13 even though the line's character length is 12.

Fix

Updated the description of parameter to consider both of this while finding the value of RightEndFileOffset

GitHub issue number

1265

Associated Risks

• The MCP Client missing the instructions in the description

✅ PR Checklist

• I have read the contribution guidelines
• I have read the code of conduct guidelines
• Title of the pull request is clear and informative.
• 👌 Code hygiene
• 🔭 Telemetry added, updated, or N/A
• 📄 Documentation added, updated, or N/A
• 🛡️ Automated tests added, or N/A

🧪 How did you test it?

Manually tested by trying to tell it to add a suggestion comment.