UI Cleanup: Campaign page

[space-dweeb]

Please clean up the code and UI for the campaign page (front/src/pages/Campaign.vue) and its components (front/src/components/campaign).

The following should be true of the code:

1. No custom CSS is used (size, color, font, etc). Style is added only through the layout system and Quasar classes listed here:
   https://quasar.dev/layout
   https://quasar.dev/style
2. File names and component references should follow "hyphen-case" format, not using "_"s

The following should be true of the UI:

1. All avatars are the same size (match Supporters)
2. Spacing between UI elements is uniform, and edges align wherever possible
3. Padding on "About Campaign" tab is increased to match "Campaign Wall" tab
4. Tabs are renamed to "Wall" and "About"; About comes first
5. Campaign description and comment content text is not faded. Stats (like # of likes, time posted, etc, can remain faded)
6. Campaign stats (location, supporters, etc) match the mock (remove likes, shouldn't be in 3 column sections, etc):
   https://www.figma.com/proto/JnFz2HjnkulA1w7nvT1PaX/Then-We-Win-App?node-id=36%3A1281&scaling=min-zoom
7. Comments better match mock (less space between text, smaller reply button, etc)