Updated file and folder settings

Author: yaira2

src/routes/docs/customize-settings/files-and-folders/+page.md

@@ -2,33 +2,70 @@
 title: Files & folders
 ---
 
+<script>
+  import { InfoBar } from "fluent-svelte";
+</script>
+
+The **Files & folders** settings page lets you fine-tune how Files handles visibility, interactions, and file behavior. From showing hidden content and file extensions to adjusting how items open or display, these options give you full control over your browsing experience.
+
 ## Hidden items
 
-### Show hidden files and folders
+- **Show hidden files and folders**: Displays hidden items when enabled.
+- **Show dot files**: Shows files and folders starting with a dot (`.`).
+- **Show protected system files**: Reveals protected system files when enabled.
+- **Show alternate data streams**: Displays alternate data streams attached to files.
 
-This is off by default, enabling it will display hidden files and folders.
+## Show file extensions
 
-### Show dot files
+Displays file extensions (e.g., `.txt`, `.jpg`) in the file list.
 
-This is on by default and displays files starting with a dot `.`.
+## Show thumbnails
 
-### Show protected system files
+Enables thumbnails for supported file types. Turning this off displays generic file icons, which may improve performance.
 
-This is off by default, enabling it will display protected system files.
+## Show checkboxes when selecting items
 
-### Show alternate data streams
+Displays checkboxes for selected files and folders.
 
-This is off by default, enabling it will display alternate data streams.
+## Opening items
 
-## Show file extensions
+- **Open items with a single click**: Allows opening files or folders with one click instead of double-clicking.
+- **Open folders with a single click in the columns layout**: Applies single-click behavior in columns view only.
+- **Open folders in a new tab**: Opens folders in a new tab instead of the current one.
 
-This is on by default and will display file extensions in the file list.
+## Show confirmation dialog when deleting items
 
-## Show thumbnails
+Choose when to display a confirmation prompt:
+  - Always
+  - Permanent deletion only
+  - Never
 
-This is on by default and displays file thumbnails. Turning it off will display file icons instead of thumbnails (this can help improve performance).
+## Show warning when changing file extensions
 
-## Show checkboxes when selecting items
+Prompts you before changing a file extension to help avoid accidental type changes.
+
+## Select files and folders when hovering over them
+
+Automatically selects items as you hover over them.
+
+## Double click on a blank space to go up one directory
+
+Navigates to the parent directory when you double-click empty space in a folder view.
+
+## Scroll to previous folder when navigating up
+
+When navigating up one level, automatically scrolls to the folder you just came from.
+
+## Size format
+
+Choose how file sizes are displayed:
+  - **Binary**
+  - **Decimal**
+
+## Calculate folder sizes
 
-This is on by default and displays a checkbox when an item is selected.
+When enabled, Files calculates and displays the total size of folders.
 
+<InfoBar severity="caution">
+  Calculating folder sizes is resource intensive and may increase CPU usage.
+</InfoBar>