feat: add reset database menu

[shaarful]

Description

Users can reset the database if any data is missing or uncompleted sync issues. It will delete the local SQLite database and initiate with new one. The confirmation dialog shows only when the user input is valid. fix the style for the required field. The About section has been added under the help menu. Users can see the BAHIS version number. Later more details thing can be added here.

Checklist

• [x] I have read the road86 Contribution Guide.
• [x] I have checked all commit message styles match the requested structure.
• [x] My code follows the style guidelines of this project.
• [x] I have performed a self-review of my own code.
• [x] I have assigned at least one reviewer.
• [ ] New and existing unit tests pass locally with my changes.
• [x] I have added tests that prove my fix is effective or that my feature works.
• [ ] My changes generate no new warnings.
• [x] I have made corresponding changes to the documentation.
• [x] New database changes have been committed.

[ChasNelson1990]

@shaarful wanna fix the merge conflicts before I review?