feat(site): configure global fonts

[greyscaled]

Summary:

Installs fira code and Inter

Impact:

A more pleasant dashboard experience in v2 that matches our prefer font
families from v1

[codecov]

Codecov Report

Merging #503 (2985b84) into main (43d433c) will decrease coverage by 0.15%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #503      +/-   ##
==========================================
- Coverage   68.10%   67.95%   -0.16%     
==========================================
  Files         164      165       +1     
  Lines        9309     9315       +6     
  Branches       85       85              
==========================================
- Hits         6340     6330      -10     
- Misses       2345     2358      +13     
- Partials      624      627       +3     

Flag	Coverage Δ
unittest-go-macos-latest	62.41% <ø> (-0.07%)	⬇️
unittest-go-ubuntu-latest	67.56% <ø> (-0.14%)	⬇️
unittest-go-windows-2022	62.29% <ø> (+0.26%)	⬆️
unittest-js	63.19% <0.00%> (-0.45%)	⬇️

Impacted Files	Coverage Δ
site/src/app.tsx	0.00% <0.00%> (ø)
site/src/theme/global-fonts.ts	0.00% <0.00%> (ø)
provisionersdk/serve.go	35.13% <0.00%> (-8.11%)	⬇️
peerbroker/dial.go	75.43% <0.00%> (-7.02%)	⬇️
provisionerd/provisionerd.go	77.20% <0.00%> (-2.21%)	⬇️
peerbroker/proxy.go	57.55% <0.00%> (-0.59%)	⬇️
coderd/provisionerdaemons.go	57.60% <0.00%> (-0.55%)	⬇️
peer/conn.go	79.53% <0.00%> (+1.53%)	⬆️
peer/channel.go	85.96% <0.00%> (+2.33%)	⬆️
provisionersdk/transport.go	85.10% <0.00%> (+6.38%)	⬆️

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[presleyp]

Awesome!

[greyscaled]

Looks like there are missing rules in our webpack build, I'll fix this.