Fixing DomElement position when camera zoom != 1 #6819
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This PR (delete as applicable)
Describe the changes below:
When the camera zoom is set to any other value than one, if a dom element origin if set to anything other than 0, the final position of the DOM was incorrect.
The complete bug is described in #6817.
I traced this back to the DOMElementCSSRenderer.
After some trial and error, I realized the translation needed to be applied after camera multiplication and not at the beginning.
With this change, DOMElements are correctly positioned.
This closes #6817 and workadventure/workadventure#3936 (where you can see a video of the issue in action)
Note: I very much suspect the same error happens in the "if" clause, if a parent matrix is set. However, I don't know how to test this. Any help is welcome to help me test this out.