Import Gecko Console without using shim

In Bug 1386535, Firefox 58, Mozilla deleted the devtools/shared/shim/ utils. Meek [| imports] the shim (re[/gre/modules/devtools/Console.jsm),](/gre/modules/devtools/Console.jsm),) now it should use the new path re[/gre/modules/Console.jsm.](/gre/modules/Console.jsm.)

https://developer.mozilla.org/en-US/docs/Tools/Browser_Console#Console.jsm was updated with this new path, too.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information