fix(ui): fix the hover effect on the packageItem's author area

[FilipMessa]

Type:
bug

Description:
This should fix unwanted hover in PackageItem's author section.

Notes:
The issue here is that PackageListItem has the prop button as true, but if I removed that or set to 'false' type-script complains that the button prop should be always set to true.
I don't have many experiences with the type-script, but I suppose that this issue is from the material-ui types.

I came to with workaround but maybe there will be exist something better.

close #135

[juanpicado]

really nice 🚀 welcome !

[codecov-io]

Codecov Report

Merging #137 into master will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #137      +/-   ##
==========================================
- Coverage   84.14%   84.12%   -0.02%     
==========================================
  Files          92       92              
  Lines         927      926       -1     
  Branches      151      166      +15     
==========================================
- Hits          780      779       -1     
+ Misses        132      128       -4     
- Partials       15       19       +4

Impacted Files	Coverage Δ
src/components/Package/Package.tsx	100% <ø> (ø)	⬆️
src/components/Package/styles.ts	100% <ø> (ø)	⬆️
src/components/Header/Header.tsx	89.47% <0%> (ø)	⬆️
src/components/Install/Install.tsx	83.33% <0%> (ø)	⬆️
src/components/DetailSidebar/DetailSidebar.tsx	89.47% <0%> (ø)	⬆️
...mponents/RegistryInfoDialog/RegistryInfoDialog.tsx	66.66% <0%> (ø)	⬆️

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