Thebe touchups
Some final touch ups to improve the usability of Thebe. This branches off from the Docker MR.
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Proper indication of package loading. This is also to prepare for #31 (closed). -
Indication of when initialization cells ( thebe-init) are done executing. -
Improve CSS for thebe-remove-input-initandhide-input. -
Move and update documentation.
Edited by Max Guichard