Add named export for Docusaurus and improve alpha publishing workflow

[frankhinek]

This PR will:

• Add a /browser named export to the @web5/api package so that TBD's Docusaurus developer site can include Web5 code examples in MDX pages.
• Fixes a bug in the alpha publishing GH Actions workflow and improves it by removing the dependence on npm version, which was duplicating package installs and throwing errors upon first publication of a new package.
• Fixes the repository.url entries in all package.json files in the workspace.

Docusaurus testing completed by @dayhaysoos

[codecov]

Codecov Report

Merging #198 (ac2e98c) into main (7f450d2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #198   +/-   ##
=======================================
  Coverage   90.28%   90.28%           
=======================================
  Files          63       63           
  Lines       11592    11592           
  Branches     1132     1132           
=======================================
  Hits        10466    10466           
  Misses       1106     1106           
  Partials       20       20           

Components	Coverage Δ
api	95.05% <ø> (ø)
common	95.00% <ø> (ø)
credentials	∅ <ø> (∅)
crypto	94.87% <ø> (ø)
dids	92.16% <ø> (ø)
agent	89.18% <ø> (ø)
identity-agent	60.50% <ø> (ø)
proxy-agent	60.00% <ø> (ø)
user-agent	58.67% <ø> (ø)