Squashed 'bundle/virtualclass/' changes from 1582267..1898fce

1898fce updated mini file
73599f6 done role assign work for whiteboard and screen share

git-subtree-dir: bundle/virtualclass
git-subtree-split: 1898fcea8eb6bb5d67f2d85bec6626ecb00d95a4
Merge commit '000e7f675ccbdce70ebb58d3adb75a9f37341ad1'

done work on assign role
added element tag for student speaker