Fixes for content release reverts, validation, theming, and slug uniqueness

This release fixes a couple of issues with reverting a content release, form validation, theming consistency, and slug uniqueness checks.

• Loading spinners in global search and document lists no longer wobble in Safari.
• Fixes reverting a Content Release with many documents, or documents with long or partly expired edit history, where some documents could be unpublished instead of restored. Reverting now restores every document to its pre-release revision, only unpublishes documents that did not exist before the release, and stops if any document's previous state cannot be determined (i.e. due to retention policies).
• Fixes validation for type aliases with option lists and date constraints. Ensures context-dependent validation and nested field rules receive the current document and field context.
• Fixes a crash that could occur in a custom input or plugin rendering FormField or FormFieldSet without a path prop, throwing "Path is not an array". Passing path is still required, but a missing one no longer crashes the Studio.
• Auto-updating Studios no longer let OS light/dark appearance override the Studio theme. Theme colors from @sanity/ui v5 light-dark() tokens stay tied to the Studio theme (via color-scheme), including when the OS is set to the opposite appearance.
• Fixes custom slug uniqueness checks being ignored on type aliases and inline fields.