Allow Web IDE users to save uncommitted changes
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### Problem to solve
Users of the Web IDE lose uncommitted changes if the page is closed / reloaded / etc..
### Intended users
Users of the Web IDE
### User experience goal
Users of the Web IDE _do not_ lose uncommitted changes if the page is closed / reloaded / etc..
### Proposal
Use the VSCode "Cloud Changes" feature...if possible.
issue