update read me

udpated read me

chore: deployment

chore: change og image

chore: made progress bar clockwise

chore: replace word xeven with flexy

chore: set timer in question screen

chore: enhance styling

chore: add meta data

fix: question screen logo on small screen

chore: refactor

chore: made ui responsive

fix: sidebar questions repetition

chore: add result screen

chore: passed question removed from sidebar list