Merge pull request #5 from asophiemignot/fire-world

Update first.fire.html
add received moves in feedback
Portfolio Minesweeper challenge uses root page of player
starting new design
wip : progress bar is still missing
wip : progress bar moved in banner
wip: greetings removed from dashboard and playground
Completed worlds have their own color :)
Extract background color of dashboard
Dashboard uses names of prod worlds
Completed icon is set in completed worlds
rerun-link and restart-link and accessed by classes
@asmignot likes it :)
Make First Web page challenge the first challenge
Column view in dashboard
Extract template world.html to remove Duplication
switch horizontal minesweeper<->fire
Pretend that the challenge Get water first exists
... Pretend that the player fails when the plane never reaches the target
work in progress