React near feature parity

[farzaank]

Fixes bugs, inconsistencies, and problems with React front end.

The ultimate goal of this PR is to create a React site that is as similar to the existing one as possible, as a foundation for the redesigned site.

Changes include the following

• Refactor of components directory to have subdirectories for components with multiple file names
  • Currently all extra files are tests, so alternatively we can create a Tests directory, but either way tests should not be sitting in the same main directory
• Implemented footer component as home for version number (new design doesn't allow version to live in header)
• Added version # (currently not displayed on React site)
• Landing page fixed
  • Fix logo sizing
  • Fix button styling
  • Fix broken links
• Move charts to bottom of subsites, for consistency with current layout
• Comment out subsites' chart view until we can make it reflect the differences between metrics

[yifanmai]

Looks promising! Let me know when this is ready for review, thanks!

[farzaank]

Looks promising! Let me know when this is ready for review, thanks!

@yifanmai Just bumping my request for review! Let me know when you get a chance to check this out.

[yifanmai]

Awesome, thanks!