chore(build): default branch to main

[cdcabrera]

What's included

• chore(build): default branch to main

Notes

• A rename of the default branch from master to main will take place after this merges. We may need to wait until this commit makes its way up towards prod to avoid breaking the badges... GitHub should redirect for a limited amount of time
• It should be unnecessary to update any scripts or CI, this is primarily a documentation update. The process for this transition already accounts for multiple branch names in CI. Because we limited what the "main" branch represents, in our case "production", no Curiosity developer should be actively/directly using this branch. This in turn should limit downstream issues.

How to test

Coverage and basic unit test check

1. update the NPM packages with $ yarn
2. $ yarn test
3. confirm completion without errors

Local run check

1. update the NPM packages with $ yarn
2. $ yarn start
3. visual regression confirmation

Proxy run check

1. update the NPM packages with $ yarn
2. make sure Docker is running, plus on network, then
3. $ yarn start:proxy
4. visual regression confirmation

Check the build

1. update the NPM packages with $ yarn
2. $ yarn build
3. confirm completion without errors

Example

...

Updates issue/story

Ongoing

[codecov-commenter]

Codecov Report

Merging #769 (12ce5a2) into ci (923eb56) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##               ci     #769   +/-   ##
=======================================
  Coverage   95.21%   95.21%           
=======================================
  Files         101      101           
  Lines        2823     2823           
  Branches     1024     1024           
=======================================
  Hits         2688     2688           
  Misses        128      128           
  Partials        7        7           

Impacted Files	Coverage Δ
src/services/rhsmServices.js	100.00% <ø> (ø)
src/services/userServices.js	97.22% <ø> (ø)

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