Add storybook-chrome-screenshot to addon gallery

[wadackel]

Issue: none

What I did

Add storybook-chrome-screenshot addon to addon gallery.

How to test

$ cd docs
$ npm run dev
$ open http://localhost:8000/addons/addon-gallery/

[codecov]

Codecov Report

Merging #1761 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1761   +/-   ##
=======================================
  Coverage   21.14%   21.14%           
=======================================
  Files         252      252           
  Lines        5693     5693           
  Branches      681      689    +8     
=======================================
  Hits         1204     1204           
+ Misses       3983     3954   -29     
- Partials      506      535   +29

Impacted Files	Coverage Δ
addons/knobs/src/components/PropForm.js	8.51% <0%> (ø)	⬆️
lib/ui/src/modules/api/configs/init_api.js	40.47% <0%> (ø)	⬆️
addons/knobs/src/components/PropField.js	10.86% <0%> (ø)	⬆️
...ponents/left_panel/stories_tree/tree_decorators.js	33.33% <0%> (ø)	⬆️
lib/ui/src/modules/ui/configs/init_panels.js	25% <0%> (ø)	⬆️
.../src/manager/containers/CommentsPanel/dataStore.js	34.78% <0%> (ø)	⬆️
addons/knobs/src/KnobStore.js	6.81% <0%> (ø)	⬆️
app/react-native/src/bin/storybook-build.js	0% <0%> (ø)	⬆️
...es__/update-addon-info/update-addon-info.output.js	0% <0%> (ø)	⬆️
addons/info/src/components/PropTable.js	21% <0%> (ø)	⬆️
... and 19 more

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[danielduan]

I undid the changes that the automatic linter scripts made to the title. Should be good to go.

[wadackel]

Hi @danielduan , Thanks for reviewed.
And sorry. I unexpectedly changed the title ...

[kazupon]

@tsuyoshiwada welcome to storybook 😉

[wadackel]

Hi @kazupon, Thx 😃 !