[Tablehub Website] Issue tracking

[devtronaut]

Goal
Users should be able to report bugs / issues / feedback for the Tablehub website.

Acceptance

• Implement Github issue and forms templates for the desired types of user feedback
• Link the issue page in the website to make it accessible from there
• Decision if the same process can be used for the reporting of issues with the tables

Initial Thoughts / Idea Dump
Have a minimal form to open issues directly from the tables, instead of only via the Tablehub website?