Build from source and upgrade to 9.2.0

[hexchain]

This PR updates Insomnia to 9.2.0 and builds it from source code. This also makes it possible to support aarch64.

Some notes:

• See https://docs.flatpak.org/en/latest/electron.html for Electron packaging information.
• flatpak-node-generator has some issues:
  • It misses some packages, see node: Fix path-based local package detection flatpak/flatpak-builder-tools#412.
  • It cannot handle browser downloads for newer versions of playwright. This is skipped here (by modifying f-n-g source code), as they are not required for building.
  • It assumes the installVersion of node-gyp to always be 9, which is incorrect - this is manually tweaked in generated-sources.json. Without this step, node-libcurl will be incorrectly built against node instead of electron, and the final program will fail with a symbol error at run time.
• electron-builder does not generate desktop and icon files unless it is making a (deb/rpm/snap/flatpak/...) package. This behavior is (ab)used to generate them.

Open question:

• Shall we change our app ID to com.insomnia.app to match upstream? https://github.com/Kong/insomnia/blob/1b5723a01b8bf18b0fd0e470a342246d5bb2617d/packages/insomnia/electron-builder.config.js#L12

[flathubbot]

Started test build 125643

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Build 125643 failed

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Started test build 125658

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Build 125658 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/108618/rest.insomnia.Insomnia.flatpakref

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Started test build 125660

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Build 125660 failed

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Started test build 125668

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Build 125668 failed

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Started test build 125670

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Build 125670 failed

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Started test build 125677

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Build 125677 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/108637/rest.insomnia.Insomnia.flatpakref

[hexchain]

bot, build

[flathubbot]

Queued test build for rest.insomnia.Insomnia.

[flathubbot]

Started test build 129687

[flathubbot]

Build 129687 successful
To test this build, install it from the testing repository:

flatpak install --user https://dl.flathub.org/build-repo/112669/rest.insomnia.Insomnia.flatpakref

[hexchain]

@barthalion Sorry for the direct ping. May I have a review please?