fix: fix bridge

[pkova]

Let's see if I remember all the things that were broken since I started looking at Bridge a few days ago.

1. The development environment is been completely broken.
2. When logging with a mnemonic you enter an infinite rendering loop.
3. Downloading a keyfile after rekeying gives you the old keys.
4. Bridge pulls data from L2 for L1 points, which means it'll be delayed by 15 minutes very often.
5. Bridge thinks we logged in with metamask if we happen to have metamask installed in the browser.
6. Bridge sometimes thinks we have no balance to do stuff.

This PR fixes all of the aforementioned issues.