Added WebVTT to default supported bitstream formats

[alexandrevryghem]

References

• Related to Made it possible to enable video viewer without also enabling image viewer dspace-angular#2156

Description

While working on PR 2156 I saw that the WebVTT bitstream type was not listed in the default bitstreams format.

Instructions for Reviewers

List of changes in this PR:

• Added the WebVTT bitstream type.

Guidance for how to test or review this PR:

• Create a new DB and run the migrations
• Check that when you upload a new *.vtt bitstream the WebVTT format is selected by default

Checklist

• My PR is small in size (e.g. less than 1,000 lines of code, not including comments & integration tests). Exceptions may be made if previously agreed upon.
• My PR passes Checkstyle validation based on the Code Style Guide.
• My PR includes Javadoc for all new (or modified) public methods and classes. It also includes Javadoc for large or complex private methods.
• My PR passes all tests and includes new/updated Unit or Integration Tests based on the Code Testing Guide.
• If my PR includes new libraries/dependencies (in any pom.xml), I've made sure their licenses align with the DSpace BSD License based on the Licensing of Contributions documentation.
• If my PR modifies REST API endpoints, I've opened a separate REST Contract PR related to this change.
• If my PR includes new configurations, I've provided basic technical documentation in the PR itself.
• If my PR fixes an issue ticket, I've linked them together.

[github-actions]

Hi @alexandrevryghem,
Conflicts have been detected against the base branch.
Please resolve these conflicts as soon as you can. Thanks!

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This message is automatically generated by prince-chrismc/label-merge-conflicts-action so don't hesitate to report issues/improvements there.

[tdonohue]

👍 Thanks @alexandrevryghem ! This looks good to me.