Fix two crash bugs on Apple Silicon

[errissa]

Type

• Bug fix (non-breaking change which fixes an issue): Fixes #
• New feature (non-breaking change which adds functionality). Resolves #
• Breaking change (fix or feature that would cause existing functionality to not work as expected) Resolves #

Motivation and Context

• Resolves one of the issues report in Segmentation Fault On Mac M2 #5951 - the crash when exiting the visualizer with ESC key.
• Resolves compilation issue that results in C++ exceptions not being caught thereby terminating an application.

Checklist:

• I have run python util/check_style.py --apply to apply Open3D code style
  to my code.
• This PR changes Open3D behavior or adds new functionality.
  • Both C++ (Doxygen) and Python (Sphinx / Google style) documentation is
    updated accordingly.
  • I have added or updated C++ and / or Python unit tests OR included test
    results (e.g. screenshots or numbers) here.
• I will follow up and update the code if CI fails.
• For fork PRs, I have selected Allow edits from maintainers.

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This change is 

[update-docs]

Thanks for submitting this pull request! The maintainers of this repository would appreciate if you could update the CHANGELOG.md based on your changes.

[ssheorey]

Hi @RohanGautam, can you test if this PR resolves your (crash when pressing ESC). Please build from source after checking out this PR.

@stefan-baumann can you test the Python unit tests on Apple M2?

[stefan-baumann]

Looks good on my end on the M2. All tests pass now, and the segfault when closing the visualizer with the escape key from #5951 (comment) seems to be fixed too.

[RohanGautam]

Echoing the same news as @stefan-baumann , all is looking good on my end too! The crash on Esc in the visualizer no longer seems to be an issue with the fixes introduced in this PR.