feat: added homepage to sanity

[0xcadams]

What does this pull request do? Explain your changes. (required)

Closes #1120, rendering sanity content on homepage.

Specific updates (required)

Intros sanity to homepage rendering.

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Name	Status	Preview	Updated
livepeer-studio	✅ Ready (Inspect)	Visit Preview	Jun 28, 2022 at 6:59PM (UTC)

[codecov]

Codecov Report

Merging #1131 (9080c5c) into master (1fa01bb) will not change coverage.
The diff coverage is 75.00000%.

@@              Coverage Diff              @@
##              master       #1131   +/-   ##
=============================================
  Coverage   50.43269%   50.43269%           
=============================================
  Files             66          66           
  Lines           4160        4160           
  Branches         734         734           
=============================================
  Hits            2098        2098           
  Misses          1816        1816           
  Partials         246         246           

Impacted Files	Coverage Δ
packages/api/src/controllers/user.ts	40.99379% <0.00000%> (ø)
packages/api/src/parse-cli.ts	31.70732% <ø> (ø)
packages/api/src/webhooks/cannon.ts	47.95322% <ø> (ø)
packages/api/src/app-router.ts	54.05405% <100.00000%> (ø)
packages/api/src/controllers/task.ts	13.26531% <100.00000%> (ø)

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