Avoid upgrade failures

**Is your feature request related to a problem? Please describe.**
Currently on start the component will try to connect to Github to update. If Github fails, this may clobber a working install.

**Describe the solution you'd like**
We should not do the final overwrite of files until the download is completed.

**Describe alternatives you've considered**
A clear and concise description of any alternative solutions or features you've considered.

**Additional context**
Add any other context or screenshots about the feature request here.