HexColorInput: Allow #rgba and #rrggbbaa color formats

[omgovich]

Closes #154

Foundation for #148

[github-actions]

Size Change: +143 B (+3%)

Total Size: 4.42 kB

Filename	Size	Change
dist/index.module.js	4.42 kB	+143 B (+3%)

_{compressed-size-action}

[codecov-commenter]

Codecov Report

Merging #155 (0faaa7f) into master (b48b62a) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##            master      #155   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           33        34    +1     
  Lines          427       442   +15     
  Branches        63        69    +6     
=========================================
+ Hits           427       442   +15     

Impacted Files	Coverage Δ
src/components/HexColorInput.tsx	100.00% <100.00%> (ø)
src/components/common/ColorInput.tsx	100.00% <100.00%> (ø)
src/utils/validate.ts	100.00% <100.00%> (ø)

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