Frontend refactor

[39bytes]

General changes

• Replaced classNames util with twMerge
• Gave review forms a fixed width of 448px
• Removed margins from root elements of components
• Reduced layout margins

File specific

Alert.tsx

• Renamed AlertProp to AlertProps

Autocomplete.tsx

• Changed options highlight color to gray
• Inverted the filtered condition to make it a bit cleaner

BoxToggle.tsx

• Removed useless flex containers
• Renamed isOpen prop to open

CourseCard.tsx

• Allow passing a className for styles

CourseInfo.tsx

• Remove pointless flex containers

CourseRequirements.tsx

• Don't export ReqsBlock
• Simplify ReqsBlock ternary expression

CourseSearchBar.tsx

• Extract icon and matched text outside of the JSX
• Replace enum with string union

ExploreFilter.tsx

• Use MultiSelect instead for the input
• Created type alias CourseTerm for 'Fall' | 'Winter' | 'Summer'
• Removed some margins on elements

JumpToTopButton.tsx

• Simplify toggleVisible
• Add opacity transition

MultiSelect.tsx

• Fixed a flickering issue when closing the dropdown
• Changed option hover color to gray

NavItem.tsx

• Added some top margin to the red underline
• Show course search bar on sm and larger

ReviewFilter.tsx

• Extract FieldLabel component

SchedulesDisplay.tsx

• Use lodash instead of dedupe functions
• Fixed an issue where the full inner text would appear before the height transition finished

SideNav.tsx

• Changed overlay to black and reduced opacity

Tooltip.tsx

• Created reusable tooltip component

About.tsx

• Extracted out Title component
• Removed margins from components
• Removed weird useless spaces ({' '})

CoursePage.tsx

• Use Loading component instead

Explore.tsx

• Rename filterIsToggled to filterOpen
• Remove useless flex and weird spaces

Instructor.tsx

• Use Loading component instead

Profile.tsx

• Remove broken py- class

Loading.tsx

• Created reusable loading page

utils.ts

• Remove dedupe functions

[codecov]

Codecov Report

Merging #296 (0ec150d) into master (4d7d2c3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #296   +/-   ##
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  Coverage   86.83%   86.83%           
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  Files          43       43           
  Lines        4065     4065           
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  Hits         3530     3530           
  Misses        535      535