PR (spyglass/lenses) allow configuration sandbox permissions #296 broke spyglass

[oliver-goetz]

In deck image us-docker.pkg.dev/k8s-infra-prow/images/deck:v20250202-8cd7d6837 spyglass is broken.
It shows the following error message when opening it.

error rendering spyglass page: error rendering template: template: spyglass.html:46:106: executing "content" at <$config.IframeSandboxPermissions>: can't evaluate field IframeSandboxPermissions in type lenses.LensConfig

PR #296 looks like the most likely reason for it.

I don't know exactly how the config is parsed. When checking the error message it looks like LensConfig needs to be extended with IframeSandboxPermissions that it can be used in spyglass.html.
LensConfig is part of the structure used for rendering the template and it includes the fields Name and HideTitle which are used in the same line of the template.

[oliver-goetz]

/kind regression