fix: export const plugin schemas instead of defaults

[mirceanis]

What issue is this PR fixing

relates to #1318 / #1317 / #1315

What is being changed

The plugin schema generator is using export const schema = {...} instead of export default {}.
This also requires the imports to change.
I also took the opportunity to export the regenerated schemas from the relevant packages as well as to remove any reference to the previous JSON outputs.

Quality

Check all that apply:

• I want these changes to be integrated
• I successfully ran pnpm i, pnpm build, pnpm test, pnpm test:browser locally.
• I allow my PR to be updated by the reviewers (to speed up the review process).
• I added unit tests.
• I added integration tests.
• I did not add automated tests because this is more of a build issue

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (71e313f) 68.19% compared to head (0788ed7) 89.83%.

Additional details and impacted files

@@             Coverage Diff             @@
##             next    #1327       +/-   ##
===========================================
+ Coverage   68.19%   89.83%   +21.63%     
===========================================
  Files         176      176               
  Lines       27002    27010        +8     
  Branches     2121     2120        -1     
===========================================
+ Hits        18415    24265     +5850     
+ Misses       8587     2745     -5842     

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[cre8]

LGTM, ty for the fix