Update electron requirement from ^4.1.4 to ^5.0.4 in /packages/generator/app/templates

[dependabot-preview]

Updates the requirements on electron to permit the latest version.

Release notes

Sourced from electron's releases.

electron v5.0.4

Release Notes for v5.0.4

Fixes

• Added check for invalid URLs upon setting cookies. #18756
• Fixed window.opener null after cross-origin navigation. #18614
• Fixed bug where notifications with same tag wouldn't show more than once when first notification was auto dismissed in Windows 7. #18741
• Fixed exiting html fullscreen mode for embedded contents. #18781
• Fixed issue where getEffectiveApperance and getAppLevelAppearance would return unknown instead of the correct value sometimes. #18689
• Fixed issue where shell.openExternal would not activate opened window on macOS. #18721
• Spellcheck providers are now (again) called with contractions and their parts. #18548

Commits

• d4319ba Bump v5.0.4
• b034bf9 fix: throw error on invalid URLs when setting cookie (#18756)
• c0e688f docs: fully document MenuItem instance properties (#18785)
• bf9b001 fix: HTML fullscreen request for sub frames (#18736) (#18781)
• 0e0c3da fix: correct isDownloadable docs to match impl (#18748)
• 63d9948 docs: fix editMenu menu role etc types (#18759)
• e0d566a fix: properly pass openExternal activate option (#18721)
• eaa22b4 fix: remove lingering data when notifications autodismiss on Windows 7 (#18741)
• 99c3ff6 fix: lost window.opener after cross-origin navigation (#18614)
• 38cca77 chore: reformat code C++ to make the linter happy (#18687)
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #1011.