build(deps-dev): bump electron from 2.0.12 to 4.0.8

[dependabot-preview]

Bumps electron from 2.0.12 to 4.0.8.

Release notes

Sourced from electron's releases.

electron v4.0.8

Release Notes for v4.0.8

Security

• Patched the FileReader vulnerability found in Google Chrome: https://electronjs.org/blog/filereader-fix

electron v4.0.7

Release Notes for v4.0.7

Fixes

• Fixed defaultId not taking affect when set to 0 and no "cancel" button was present on macOS. #17151
• Fixed process.versions.chrome reporting the wrong patch version. #17218
• Fixed webContents.print() not working correctly. #17116
• Fixed a bug when retrieving security scoped bookmarks in ShowOpenDialog and ShowSaveDialog. #17176

electron v4.0.6

Release Notes for v4.0.6

Fixes

• Fixed an issue on Windows 10 RS4 and later that was causing the virtual keyboard not to appear when focusing some input fields. #16944

Other Changes

• Updated Chromium to 69.0.3497.128. #16636

electron v4.0.5

Release Notes for v4.0.5

Features

• Allowed filtering of remote.getBuiltin(), remote.getCurrentWindow(), remote.getCurrentWebContents and <webview>.getWebContents(). #16688

Fixes

• Added a patch to fix incorrect enumeration and instantiation of Node.js ciphers in the Crypto module. #16912
• Electron no longer forwards IPC filtering events to app for dev-tools and extensions. #16716
• Fixed a rare renderer hang in cc::ProxyMain::BeginMainFrame. #16946
• Fixed an issue with promise methods not resolving correctly over ipc in the renderer process. #16654
• Fixed broken save dialog on macOS for <a> downloads. #16647
• Fixed crash when calling setProgressBar on macOS. #16727
• Fixed issue whereby a user was not well informed when interacting with a menu submenu that did not have any visible MenuItems. #16847
• Fixed memory leak when using webFrame and spell checker. #16772
• Fixed submenus not responding to the visible: false MenuItem property. #16845
• Fixed the enable property having no effect for top-level submenu MenuItems. #16857

electron v4.0.4

Release Notes for v4.0.4

... (truncated)

Commits

• 56c545f Bump v4.0.8
• 34c1a53 fix: FileReader: Make a copy of the ArrayBuffer when returning partial result...
• 8d330f7 Bump v4.0.7
• 3c0d90e fix: correct chrome version in chrome_version.h (#17218)
• 9d30245 fix: access of out-of-scope reference in ShowOpenDialog and ShowSaveDialog (#...
• 0efccf4 chore: remove an unused header (#17158)
• 4e0d4c4 fix: set cancelId to 1 when defaultId == 0 and no 'cancel' button (#17151)
• 6d313b4 Fix webContents.print() (#17116)
• 330e8ab Bump v4.0.6
• ffd8c36 chore: bump chromium in DEPS to 69.0.3497.128 (#16636)
• Additional commits viewable in compare view

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[Stephen-Gates]

See https://electronjs.org/blog/filereader-fix

Chromium FileReader Vulnerability Fix | Electron Blog

[dependabot-preview]

Superseded by #899.