Forward `update` flag on Flipper restart
Forward `update` flag on Flipper restart

Summary:
I find it pretty odd that TypeScript just happily accepts
flags that don't exist?

This ensures Flipper properly restarts through Launcher when relevant settings change, which had caused a few support issues.

Reviewed By: lawrencelomax

Differential Revision: D33587139

fbshipit-source-id: d92392e87855b1267abeb374631c85cf3c86ded7

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