🤛🏼 Miscellaneous styling changes

[ezwelty]

• [x] Finish standardizing border radius
• [x] Make settings icon larger
• [x] [mobile] Make location list thumbnails larger
• [x] Switch to sentence case
• [x] Remove more landmarks from default Google basemap (if possible)
• [ ] Remove underlines from links (?)
• [ ] Make text more legible: larger, darker
• [ ] Make icons larger
• [ ] Do not crop thumbnail and banner photos (?)
• [ ] [mobile] Remove filter count from filter icon (or revisit calculation of count)
• [ ] [mobile] Remove background from header bar
• [ ] ...