Admin UI to control Extensions

[tdipisa]

Description

It would be good to include a new dedicate admin section where it is possible to control additional extensions installed in a MS instance. This way it will be possible to:

• Easily and clearly update an extension or delete it without necessarily opening an existing context
• Have a better overview of all installed extension to better manage them

What kind of improvement you want to add? (check one with "x", remove the others)

• [X] Minor changes to existing features
• [ ] Code style update (formatting, local variables)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] CI related changes
• [ ] Other... Please describe:

Other useful information