Migrate code base to typescript

[frontendphil]

BREAKING CHANGE

position and align properties have become tuples instead of a string because type safety and we've been splitting the string anyways everywhere.

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[codecov-commenter]

Codecov Report

Merging #169 into master will decrease coverage by 1.19%.
The diff coverage is 97.86%.

@@            Coverage Diff             @@
##           master     #169      +/-   ##
==========================================
- Coverage   96.09%   94.90%   -1.20%     
==========================================
  Files          13       24      +11     
  Lines         282      706     +424     
  Branches        0       92      +92     
==========================================
+ Hits          271      670     +399     
- Misses         11       12       +1     
- Partials        0       24      +24     

Impacted Files	Coverage Δ
src/hooks/index.ts	100.00% <ø> (ø)
src/hooks/useWatcher.ts	93.75% <ø> (ø)
src/utils/index.ts	100.00% <ø> (ø)
src/utils/uniqueId.ts	100.00% <ø> (ø)
src/StickInline.tsx	93.75% <91.66%> (ø)
tests/positioning.test.tsx	93.54% <93.54%> (ø)
src/Stick.tsx	91.50% <94.73%> (ø)
tests/nodeWidth.test.tsx	96.29% <96.29%> (ø)
tests/updates.test.tsx	97.87% <97.87%> (ø)
src/StickContext.ts	100.00% <100.00%> (ø)
... and 35 more

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[frontendphil]

@jfschwarz sorry for the huge PR :) I needed a project to test out what "migrating to typescript" means.

[Jianrong-Yu]

A new PR is merged.