fix: plugin loading

[innerdvations]

What does it do?

Fix imports for both typescript and javascript projects so that plugins load within Strapi 5

Still in draft because:

1. waiting for the parent branch to be finished and merged
2. I'm not sure if we actually want to remove the build process from javascript plugins, or fix building instead. If this is the correct approach, I will remove the build scripts from javascript. If it's the incorrect approach and we should be building, I will fix the build script to include all necessary files (currently only index is copied so js plugins are broken)

Why is it needed?

Currently, plugins created by init don't actually load in Strapi 5

How to test it?

generate new js and ts plugins; they should work fine in Strapi 5 without modification

Related issue(s)/PR(s)

fixes #33
fixes #35

DX-1518
DX-1519

[changeset-bot]

🦋 Changeset detected

Latest commit: edea3e7

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@strapi/sdk-plugin	Patch

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[Convly]

Tested, LGTM

[Bassel17]

LGTM