Add file extensions to compiler/loaders

[staylor]

Closes: #5019

These extensions are used on some routes on the Shopify website.

Testing Strategy:

Try importing a .mov file - a URL should be returned, instead of a loader error.

[changeset-bot]

⚠️ No Changeset found

Latest commit: 45d4491

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[remix-cla-bot]

Hi @staylor,

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[remix-cla-bot]

Thank you for signing the Contributor License Agreement. Let's get this merged! 🥳

[machour]

Thank you for your contribution!

New extensions should also be declared in packages/remix-dev/modules.ts

See https://github.com/remix-run/remix/pull/3985/files for an example

[machour]

You also need to target the dev branch instead of main since your updating the source code.
Could you also take a look at the changesets comment above, and generate the changeset for this PR? 🙏🏼

[staylor]

fresh branch over here: #5030