Fix #4269 iPhone viewport dimensions

[J-Kallunki]

Issue: #4269

Fixed config of iPhone viewport dimensions
Reference config file.

[storybook-safe-bot]

	Fails
🚫	PR is not labeled with one of: ["cleanup","BREAKING CHANGE","feature request","bug","documentation","maintenance","dependencies:update","dependencies","other"]

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[gabrielcsapo]

@J-Kallunki thank you for the submission! Would you be able to resolve the unit test failures?

[codecov]

Codecov Report

Merging #4293 into master will increase coverage by 48.42%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #4293       +/-   ##
===========================================
+ Coverage    40.2%   88.63%   +48.42%     
===========================================
  Files         510        6      -504     
  Lines        5944       44     -5900     
  Branches      794        2      -792     
===========================================
- Hits         2390       39     -2351     
+ Misses       3169        4     -3165     
+ Partials      385        1      -384

Impacted Files	Coverage Δ
...toryshots-core/src/frameworks/svelte/renderTree.js
addons/backgrounds/mithril.js
addons/knobs/src/components/types/Select.js
...yshots/storyshots-core/src/frameworks/rn/loader.js
addons/storysource/src/loader/parsers/index.js
lib/ui/src/modules/ui/configs/handle_routing.js
...ents/stories_panel/stories_tree/tree_decorators.js
lib/cli/lib/initiate.js
...-native/src/preview/components/OnDeviceUI/style.js
lib/core/src/server/config.js
... and 493 more

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[J-Kallunki]

@J-Kallunki thank you for the submission! Would you be able to resolve the unit test failures?

Yeah I fixed Viewport test but circeci: cli:
"could not find a copy of webpack to link in /tmp/storybook/node_modules/react-static-next-fixture/node_modules/uglifyjs-webpack-plugin/node_modules"

[igor-dv]

This is not related to your changes.

[gabrielcsapo]

🙌 awesome!