feat(react): add `Skeleton` & `InputAdornment` components #372

Job	Run time
🌳 ESLint (STATIC ANALYSIS) (lts/*)	5m 51s
💅 Storybook (lts/*)	5m 29s
ʦ Typecheck (STATIC ANALYSIS) (lts/*)	4m 7s
👾 Unit Tests (lts/*)	9m 57s
🚧 Build (lts/*)	4m 10s
	29m 34s

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