Update dependency styled-components to v3.4.5

[renovate]

This Pull Request updates dependency styled-components (homepage, source) from v3.3.3 to v3.4.5

Release Notes

v3.4.5

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• Tone down the dev warnings for deprecated APIs (they were console.error, now console.warn), by @​probablyup

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v3.4.4

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• Fix warning function not having a production fallback, by @​mitoyarzun (see #​1938)

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v3.4.3

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• Add warning for the upcoming removal of the extend API in v4.0, by @​probablyup (see #​1909)

• Throw Error if a React component was mistakenly interpolated within styles, by @​imbhargav5 (see #​1883)

• Fix the primitives build, by @​probablyup (see 24f097)

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v3.4.2

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• Fix a regression from #​1843 that breaks deferred injection and duplicates rules, by @​kitten (see #​1892)

• [TS] Fix missing generic type arguments in .d.ts, by @​PzYon (see #​1886)

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v3.4.1

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• Fixed a bug in typings where isStyledComponent was defined using an undefined variable, by @​MayhemYDG (see #​1876)

• Add error system, by @​probablyup (see #​1881)

• Fix "stream" module not being properly eliminated by rollup, by @​probablyup

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v3.4.0

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• Add first-class support for functions that return objects, by @​acjay (see #​1820)

  const Comp = styled.div((({ color }) => ({
    color,
  }))

• Add support for the prop variants used by Preact (autofocus, class, for), by @​probablyup (see #​1823)

• Various performance improvements, by @​probablyup (see #​1843)

• [TS] Revert #​1798, by @​Igorbek (see #​1840)

• [Internal] Add benchmarking suite, by @​mxstbr (see #​1833)

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This PR has been generated by Renovate Bot.

[coveralls]

Pull Request Test Coverage Report for Build 157

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 74.494%

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Totals
Change from base Build 116:	0.0%
Covered Lines:	167
Relevant Lines:	215

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💛 - Coveralls