New storage keyword highlighting applies highlighting when importing modules

[Braqzen]

Summary

Personally, I'm not a fan of the colour at all but I can try to ignore that - pls change it to be light grey or green or something.
What I cannot ignore is that storage is highlighted in more places than it should be highlighted e.g. when you declare storage for a contract to use.
Specifically, storage being individually highlighted when you import modules from std.
The highlighting applies as you'd expect it when using it in functions.

Screenshot

[adlerjohn]

This is because storage is a keyword, so it's naively highlighted. This brings up a good question, of whether or not it should be forbidden for a library to be called storage. If yes, then this issue will magically go away.

[adlerjohn]

Related: FuelLabs/sway#1996

[sdankel]

Fixed in #80