Better message when plugins fail to update about zazu HOT 1 CLOSED

The cases are:

• Remote has changes
• I have committed changes
• I have committed changes, and remote has changes
• I have uncommitted changes
• no internet connection / gh is down / git pull fails

In the last 3 cases they were playing in a part of the app that only the app should be playing with. My assumption is that we never want to be destructive, and we know they can program if they were in there.

For uncommitted changes, we should just fail since theres no way we can guarantee changes will not get destroyed. Otherwise we can potentially do a fetch/merge pattern.

from zazu.