Adjust the Rescan Folder Feature

[Raina1007]

Describe the bug
When rescan folder is used it checks for toc files for the version of wow it is checking for. If any subfolder is missing a toc file for that version a warning message is given or it breaks the connection to the provider, forcing the user to have to uninstall/reinstall via Get Addons.

To Reproduce
Steps to reproduce the behavior:

1. Go to Get Addons - search for DBM or BigWigs for Wrath, Classic Era
2. Click on install one of them - click on rescan folder
3. See error

Expected behavior
I think Rescan folders needs to be adjust so that if it finds even 1 toc for the version of wow it knows it stops looking to see if any subfolders have it to prevent the warning message. Some of the more complicated addons have a lot of subfolders for versions of wow that don't exist in classic era or wrath or features that don't exist in either so they don't have toc files for those versions of wow, but the main folder does. This might prevent addons from showing warnings or losing connection to the provider potentially.

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: N/A - happened on windows and mac computers
• Browser - N/A - happened in wowup.io cf - but could happen on wowup.io
• Version - been an ongoing issue, but no solution has been found, maybe this idea might fix it - wowup.io cf v.2.12.0 beta 2

Additional context