22: develop homepage ui

the changes in this merge request mainly affect the homepage and entail:

• adding main headings
• adding two panel widgets: mypint analytics and monthly goal info
• added placeholder text for user details (monthly goal info)
• added animated beer glass component which tilts on-hover
• styling of homepage that closely matches figma design
• added button for adding a pint entry
• made changes to homepage design to accommodate responsiveness for smaller screen sizes and different browsers

Closes #22 (closed)