TODO pre-launch

[p0lygun]

• [x] #80
• [x] #81
• [x] new state for exp code button when they're copied
• [x] #82
• [x] #83
• [x] #84
• [x] #85
• [x] "official Battlefield exp" page should lead to a "coming soon" page
• [x] Remove test tags and add the ones for current production env
• [x] Test and add OGP and Twitter link preview for all pages
• [x] #87
• [x] Update DB
• [x] Do a final test of whole website

[p0lygun]

the website is now published at http://bfportal.gg