PKG -- [fcl] Default to localStorage

[nialexsan]

original PR:
#1782
Reverts #1796

[changeset-bot]

🦋 Changeset detected

Latest commit: ad0c3e5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@onflow/fcl	Minor

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[jribbink]

I just pushed some changes to update this with the master branch, etc. It works now, but there's one unfortunate bug.

Flow Wallet (or any extension wallets) will overwrite the default configuration of FCL (fcl.storage.default), meaning that these changes will appear not to do anything (FW overwrites with sessionStorage). It's related to some of the long-standing global state issues in FCL. I need to look into what the best solution is here.

Maybe it's just a good time to just move away from the fcl.storage.default key in favour of more explicit dependency injection.