Remove all Glitch references

[crcdng]

Glitch has shut down on July 8, 2025.
Someone has to go through the A-Frame website (and other places such as the Github Readme.md) and remove references to it.

[vincentfretin]

Most of references in documentation were fixed by aframevr/aframe#5744
remaining tasks in aframevr/aframe#5737
In this repo there is only

aframe-site/src/_data/examples.yml

Line 14 in 9ea770c

source_url: https://glitch.com/~aframe

We won't update the old articles to remove all links.

[crcdng]

The first mention of Glitch is in the second sentence everyone encounters who reads the docs: https://aframe.io/docs/1.7.0/introduction/

"A great way to try out A-Frame is to remix the starter example on Glitch, an online code editor that instantly hosts and deploys for free."

This does not work anymore and it is very confusing for new people who come to A-Frame.
I would therefore recommend to keep updating the documentation when errors like this one are reported.

[vincentfretin]

Yes, that section needs to be rewritten, stackblitz for dev and replit for prod can be used instead of glitch.
I created aframevr/aframe#5761 to have the documentation up to date on the docs 1.7.0 branch with what we fixed already.