fix(mimetype): Add TSV support in mimetype aliases, mapping, and names

[brlin-tw]

• Resolves: [Bug]: Nextcloud lacks mime type definition for TSV(tab-separated values) files #61148

Summary

This pull requests adds definitions for the text/tab-separated-values mime type.

TODO

• How to verify this one? I'm not actually sure. The devcontainer seems to be run just fine.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)
• Labels added where applicable (ex: bug/enhancement, 3. to review, feature component)
• Milestone added for target branch/version (ex: 32.x for stable32)

AI (if applicable)

• The content of this PR was partly or fully generated using AI

[chatgpt-codex-connector]

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