Requested mvp fixes

[michelleyeoh]

Schedule page

• date on the left column (may 9, may 10) should be sticky
• a little more top + bottom padding to the Add buttons
• add events without reloading the whole page (make only the events section refesh as opposed to full page)

Landing

• add hover and pressed states on the big buttons on starter kit + discord sections

• Add hover animation for Mentor Director help

• starter kit and discord section make larger(?)

• remove startkit from header