feat:custom theme provider

[e-roy]

Closes #

Description

Adding the Web3uiProvider component
This provider takes in 3 optional props - theme, alchemyKey, and ankrKey
Intended to wrap the user application inside of the wagmi provider
theme takes in a object for user custom theme. stitches theme
this object will override the default theme

📝 Additional Information

Anything else you'd want reviewers to know.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 73f6b3d

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Updated
web3-ui-docs	✅ Ready (Inspect)	Visit Preview	Aug 10, 2022 at 7:01PM (UTC)
web3ui	✅ Ready (Inspect)	Visit Preview	Aug 10, 2022 at 7:01PM (UTC)