chore(deps): update dependency style-loader to v0.19.0

This Merge Request updates dependency style-loader from v0.18.2 to v0.19.0

Commits

webpack/style-loader

• c9707f1 chore(release): 0.19.0
• 378e906 feat: add option to enable/disable HMR (options.hmr) (#264)
• 67120f8 feat: support 'before' insertions (options.insertAt) (#253)
• a2ae3ac docs(README): fix bash code highlight (#262)
• ce53bd9 docs(readme): fix typo (#260)
• 57e171f docs: Fixes typo in readme (#258)
• 01ceef8 docs(README): fix example (options.insertInto) (#251)
• 25e8e89 feat: add support for iframes (options.insertInto) (#248)

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