fix(linux): OpenURI portal support for shell.showItemInFolder()

[codebytere]

Description of Change

Refs https://chromium-review.googlesource.com/c/chromium/src/+/3009959.

Adds OpenURI portal support for shell.showItemInFolder().

The OpenURI portal is a more universal standard for being able to open
various items on the host, including directories. More critically, it
has special handling for containerized runtimes that will remap special
paths to point to the proper host locations.

Use the OpenURI portal as a fallback for
if the FileManager1 API is not available. When running in a
containerized runtime, D-Bus access is generally sandboxed, so Chromium
will notice that FileManager1 is not accessible and use the portal.

Checklist

• PR description included and stakeholders cc'd
• npm test passes
• PR release notes describe the change in a way relevant to app developers, and are capitalized, punctuated, and past tense.

Release Notes

Notes: none

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No Release Notes

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I have automatically backported this PR to "13-x-y", please check out #30782

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I have automatically backported this PR to "14-x-y", please check out #30783

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I have automatically backported this PR to "15-x-y", please check out #30784