Ensure metadata overrides file contents

[pablonyx]

Description

We need to ensure the metadata tags we support override the new file preview functionality (#3113)

• Metadata docs:https://docs.onyx.app/connectors/file#adding-metadata

How Has This Been Tested?

• Various web sources, various .txt files with links, and various .txt files without links

Accepted Risk (provide if relevant)

N/A

Related Issue(s) (provide if relevant)

N/A

Mental Checklist:

• All of the automated tests pass
• All PR comments are addressed and marked resolved
• If there are migrations, they have been rebased to latest main
• If there are new dependencies, they are added to the requirements
• If there are new environment variables, they are added to all of the deployment methods
• If there are new APIs that don't require auth, they are added to PUBLIC_ENDPOINT_SPECS
• Docker images build and basic functionalities work
• Author has done a final read through of the PR right before merge

Backporting (check the box to trigger backport action)

Note: You have to check that the action passes, otherwise resolve the conflicts manually and tag the patches.

• This PR should be backported (make sure to check that the backport attempt succeeds)

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Name	Status	Preview	Comments	Updated (UTC)
internal-search	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Dec 19, 2024 4:05am

[rkuo-danswer]

tested, looks good