closes #376 - Implement search and admin-filter functionality into Admin Users page

[anthonykhoa]

Users should be able to see a search bar, search options, as well as filter options when on the admin users page. These functionalities should all work as well.

This PR will:

• Create and implement filter/search options and search bar into admin users page
• Set up a state that changes when someone clicks on another search or filter option button
• Remove some custom css styling from pages/admin/users.tsx to look more professional, used bootstrap classes instead where possible
• Highlight searchTerm in the search results

[vercel]

This pull request is being automatically deployed with Vercel (learn more).
To see the status of your deployment, click below or on the icon next to each commit.

🔍 Inspect: https://vercel.com/c0d3/c0d3-app/fnn9nbbhb
✅ Preview: https://c0d3-app-git-searchfilters.c0d3.vercel.app

[codecov]

Codecov Report

Merging #377 into master will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #377   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           80        80           
  Lines         1027      1027           
  Branches       231       231           
=========================================
  Hits          1027      1027           

[songz]

instead of using a tracker, couldn't you use the index?

...reduce( (acc: string[], word: string, i: number) => {

[songz]

const originalWord = str.substr( tracker, word.length )
acc.push(originalWord)

[songz]

const lowerCaseSearchTerm = searchTerm.toLowerCase() you don't need to pass this in as a variable.