Review and Refactor: `dev` and `dev_title` Feature Flags in `/mention-each` Command

[shobhan-sundar-goutam]

Issue Description

The /mention-each slash command currently uses two separate feature flags:

• dev
• dev_title

During execution, these flags manage how users with specific roles are mentioned and displayed.

However, having two separate flags for a single command flow seems unnecessary and may lead to confusion or inconsistent behavior. The command has been stable for a while now, and it's a good time to revisit this logic.

Expected Behavior

Please conduct a thorough review of the flag usage in this command by referring the doc and the code. Based on the review, either:

• Cleanly remove the flags if they are no longer needed, consolidating the logic.
• Refactor or simplify the behavior if only one flag is necessary.
• Or, clearly document and justify why both flags are still required if they are to be kept.

Severity/Priority

• Critical
• High
• Medium
• Low

Checklist

• I have read and followed the project's code of conduct.
• I have searched for similar issues before creating this one.
• I have provided all the necessary information to understand and reproduce the issue.
• I am willing to contribute to the resolution of this issue.