Bug#93 - Coinbase Extension

[L03TJ3]

Description

Removed general usage of injected connector (only for metamask now)
Fixed metamask not working while coinbase is installed
Added start of coinbase-support but not working yet

About # (link your issue here)

#93

How Has This Been Tested?

Locally on staging / production

Checklist:

• PR title matches follow: (Feature|Bug|Chore) Task Name
• My code follows the style guidelines of this project
• I have followed all the instructions described in the initial task (check Definitions of Done) -- added temp fix as discussed with sirpy
• I have performed a self-review of my own code
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• I have added reference to a related issue in the repository
• I have added a detailed description of the changes proposed in the pull request. I am as descriptive as possible, assisting reviewers as much as possible.
• I have added screenshots related to my pull request (for frontend tasks)
• I have pasted a gif showing the feature.
• @mentions of the person or team responsible for reviewing proposed changes

[L03TJ3]

I have added a possible (draft) solution for supporting both of the extensions separately
( I just realized that there is a little more involved if we want to support CoinBase tho.. )

[sirpy]

make sure there are no other places accessing ethereum instead of selectedProvider