Alert for Unpushed Commits Before PR Merge (in-app_

[krlvi]

Current Issue:
The workflow breaks when a pull request is created and additional commits are made without pushing them. Currently, users must manually drag-and-drop commits to a new virtual branch and unapply the old virtual branch to resolve this.

Proposed Solution:
Before allowing a pull request to be merged, add an alert that detects unpushed commits and prompts:
"You have unpushed commits. Would you like to push these commits to the remote branch before merging?"

From discord https://discord.com/channels/1060193121130000425/1073202153163857920/1307155854130286613