Filter system

[haihan-lin]

Closes #77

[JackWilb]

Looks good. I'm going to do some testing on the server this afternoon and then I'll approve. I left a couple of suggestions for you, but they shouldn't hold back the PR. Feel free to make the changes if they make sense to you

[haihan-lin]

• Add a filter board for the app
• the filter affect the available cases -> question: should the filter affect the "aggregated cases", for example -/4700 to -/90 because the filter changed. Currently this happens but I feel like it is confusing since surgery selection doesn't affect the number.
• Reset for each filter section
• Reset button should be disabled when it is at default filter state.
• cleaned up lineup and semantic ui.

[JackWilb]

Things for me to double check:

• lineup remnants are fully gone
• test that it compiles and works as intended
  I noticed issues loading an old state. Saving and loading new states seems fine
  Aggregated cases showed 4712/7. I'm not sure what that means
• are there any related issues that we can close with this PR

[JackWilb]

Looks good to me! I noted a couple issues in my comment above that might warrant some further investigation

[haihan-lin]

I noticed issues loading an old state. Saving and loading new states seems fine
Aggregated cases showed 4712/7. I'm not sure what that means

Pretty sure this is because the main interface doesn't "reload" until you click back to render it. But I'll take a closer look on next PR.