feat: publish HoloLake model-native living system source

product-source/hololake-platform/site/guides/manage-display-preferences.md

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+# Manage Display Preferences
+
+Display preferences live in local app settings unless a setting is intentionally stored in the note or vault.
+
+## Theme
+
+Choose Light, Dark, or System in Settings. System follows the operating system appearance at runtime.
+
+You can also switch theme mode from the command palette.
+
+## Note Width
+
+Set the default rich-editor width in Settings:
+
+- **Normal** for focused writing.
+- **Wide** for tables, diagrams, dense notes, and generated documents.
+
+An individual note can override the default width from the editor toolbar. That override is stored as `_width` in the note frontmatter.
+
+## Sidebar Labels
+
+HoloLake Era can pluralize type names in the sidebar. Turn this off in Settings if your type names should be shown exactly as written, or use `_sidebar_label` on a type document for an explicit label.
+
+## Vault Content
+
+Settings also control whether Gitignored files and non-Markdown file categories are visible in the app. Use these controls to keep generated or local-only files out of regular note workflows.