Rename "Technology" to "Tutorial Table of Contents"

[d-ronnqvist]

Bug/issue #, if applicable:

Summary

This renames Technology to TutorialTableOfContents so that the symbol names in the code matches the user-facing terminology. This makes it slightly easier to understand what type of pages this code is related to.

Dependencies

None

Testing

Nothing in particular. This isn't a user-facing change.

Checklist

Make sure you check off the following items. If they cannot be completed, provide a reason.

• [ ] Added tests
• [ ] Ran the ./bin/test script and it succeeded
• [ ] Updated documentation if necessary

[d-ronnqvist]

@swift-ci please test

[d-ronnqvist]

@swift-ci please test