update the readme and add screenshots

Merge pull request #17 from MultiX0/streak_system

fix some bugs && make the friends are getting from the home page

add friends_leaderboard

add streak to the user profiles

Merge pull request #16 from MultiX0/daily_quests

complete daily quests system

update the user online status when he entered the app

new design for the daily quest ui

add basic ui

add the base of the daily quests

complete shared quests

add isolate

complete 70% from the shared quests

add seperate states for each shared quest requests and the quest requests