chore(deps): replace import_map.json with deps.ts

[gabeidx]

To avoid consumers having to reference our own import_map.json every time, this PR moves back to using deps.ts to reference the dependencies.

[codecov]

Codecov Report

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@@           Coverage Diff           @@
##             main       #8   +/-   ##
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  Coverage        ?   81.45%           
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  Files           ?        6           
  Lines           ?      151           
  Branches        ?       23           
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  Hits            ?      123           
  Misses          ?       28           
  Partials        ?        0           

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