[IMPROVEMENT] Allow changing the existing file path for package manager installation path.

[lordlad]

Please confirm these before moving forward.

• I have searched for my feature proposal and have not found a work-in-progress/duplicate/resolved/discarded issue.
• This improvement refers to an existing feature. If you want to suggest a new feature, please use this template.
• This improvement is not a bug. If you want to report a bug, please use this template.

Describe the improvement

Hi,

it will be great that UniGetUI will allow the users to edit the default path for the Package Managers.

For example, i got chocolatey silently installed at C:\programdata\chocolatey by default but UniGetUI can only detect the chocolatey installation at C:\Program Files\UniGetUI\choco-cli\choco.exe.

Describe how this improvement could help users

It will be useful to allow the user to manually browse to their specific installation path if need be as some package managers may install to a directory file path different from the one specified in UniGetUI

Of course, the users can always move the specific package manager files to the path specified in UniGetUI but more option should be good.

[mrixner]

See #1855 & #2658