CLC-2160 - Make footer for mobile more legible
https://jira.media.berkeley.edu/jira/browse/CLC-2160

Since we had to modify some of the margin on the splash page, this also fixes:
CLC-1410 - [Front end] Reformat release note for mobile
Merge pull request #1333 from christianv/CLC-2160

CLC-2160 - Make footer for mobile more legible