STW: Move theme to main repo

[bkleinen]

Opening a Pull Request to Update your Project

I've started a documentation on how we should use the forking workflow here:

https://github.com/htw-imi-showtime/showtime-website/blob/documentation/doc/forking-workflow/index.md
(will not be merged to main due to file sizes)

Please follow these Steps & Guidelines for your Pull Request:

Before you Request a Review Check and Tick these Boxes:

[] make sure that the hugo site build works and check the result visually.
[] merge your local branch with upstream/main (see update doc)
[] Deploy the Site on your github pages by activating the "Deploy Page using GH-Actions" Workflow in "gh-pages-action.yml"
[] make sure that your PR contains only files / file changes within your project subdirectory.
[] make sure that all your file names consist only of lower case letters, numbers, or [-_.] - with only one . for the file extension
[] delete all unnecessary files from your PR (including cat.jpg and kitty.jpg)
[] check the image file sizes. All Images have to be as small as possible. See ./doc/disk_usage.md about this issues, there's a script: ./bin/images-smaller.sh

Note that if you fail to do so, I may simply reduce the file sizes brute force using
the script above - WITHOUT CHECKING THE QUALITY

[] if everythings seems fine, request a review by bkleinen on github. (on the upper right)

Fill out this Information:

1. Change the PR Title to: (e.g. B0 - update techstack.md) and describe your changes:

2. URL of your Preview Site Containing the Changes:

3. When did your Project Supervisor review your changes? (Date/Note or require review for PR):

4. If your disk usage exceeds 500K, provide a reason while you want to include so many images or why certain images need to be that big:

IMPORTANT: if you run into trouble / If the checks fail...

• if you cannot figure out why a check fails or you think that it may be wrong,
  don't hesitate to contact me! (e.g. by requesting a review and commenting in the pr)

• run the checks locally with:

  ./bin/check-project-update-pr/run-all.sh <project_id>

All good?

If all checks run successfully the PR will be reviewed and, if no
further changes are requested, merged and closed.
(this is the time to update and start a new branch!)

More Information

We are using the Forking Workflow.

• Best Practices for Pull Requests
• Atlassian Git Tutorial: Forking Workflow
• GitHub Docs: Collaborating with pull requests
• Documentation in README.MD and /doc