docs: FAQ, update run, update import

Revert "Merge pull request #2398 from ethereum/compiler_from_pragma"

This reverts commit 87b69736, reversing
changes made to 148d0669.

pickup compiler version from pragma

fixes test import

web3 provider connection dialog improvement

Dark theme update

Update ballot.sol

Fixing bugs of FE #2386

- same name
- empty name
- remove empty folder
- close deleted file tab
 issues

fixed label of instance button

Change plugin manager styles