Update dependency cordova-plugin-ionic-webview to v4.2.1

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
cordova-plugin-ionic-webview	dependencies	minor	4.1.1 -> 4.2.1

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Release Notes

ionic-team/cordova-plugin-ionic-webview

v4.2.1

Compare Source

Bug Fixes

• ios: release userAgentLock for IAB compat (#​558) (4c027f3), closes #​551

v4.2.0

Compare Source

Bug Fixes

• ionassethandler.m: fix startPath is getting null (#​463) (0bf16f1)
• ios: avoid app scrolling to top on keyboard hide (#​533) (7974eb4)
• ios: Replace deprecated APIs (#​539) (27b9021)

Features

• android: proxy service worker requests through local server (#​452) (c672175)
• ios: implement custom userAgent handling (#​537) (8587114)

4.1.3 (2019-10-30)

Bug Fixes

• android: return proper mimeType for .mjs files (#​455) (173a313)
• ios: mitigate media memory usage (#​459) (cbd526d)
• ios: remove itms-services private scheme (#​464) (d7d2600)

4.1.2 (2019-09-25)

Bug Fixes

• android: allow schemes that start by https (#​437) (fab9d1f)
• Android: return proper mimeType for wasm files (0eb8a37)
• ios: make programmatically focus work on iOS 13 (#​438) (7a514b0), closes #​435

4.1.1 (2019-06-26)

Bug Fixes

• ios: show error message when app fails to load (#​382) (cb1f026)

v4.1.3

Compare Source

Bug Fixes

• android: return proper mimeType for .mjs files (#​455) (173a313)
• ios: mitigate media memory usage (#​459) (cbd526d)
• ios: remove itms-services private scheme (#​464) (d7d2600)

v4.1.2

Compare Source

Bug Fixes

• android: allow schemes that start by https (#​437) (fab9d1f)
• Android: return proper mimeType for wasm files (0eb8a37)
• ios: make programmatically focus work on iOS 13 (#​438) (7a514b0), closes #​435

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