React-Play Link to PR

Previously cover images were accepted in .png format only. This PR allows plays to accept additional image extensions as the preview.

Fixes #774

How Has This Been Tested?

• Replace cover.png in one of the src/plays/<play_name> directories with cover.jpg or cover.jpeg
• Displayed play will now set the new cover image as preview

Screenshots or example output

Before: Play with cover.png

After : Replacing cover.png with a new image, cover.jpg

Learn-Awesome Link to PR

• Panel UI fixed, by making use of tailwindcss/typography
• Separation of data, content now in a separate js file

• Prototype of new roadmap, which can now have non-linear-flow, children, direct editing on the UI ( far from perfect ) Available at /roadmap-alternate/programming_in_golang

• Panel can be opened with right click on node

• The idea is to allow users to add / update content right on the browser

  Editing enabled