chore(deps): update foldergram/foldergram to v1.0.6 (#5049)

This PR contains the following updates:

| Package | Update | Change |
|---|---|---|
| [foldergram/foldergram](https://github.com/foldergram/foldergram) | patch | `v1.0.5` → `v1.0.6` |
| [ghcr.io/foldergram/foldergram](https://github.com/foldergram/foldergram) | patch | `1.0.5` → `1.0.6` |

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### Release Notes

<details>
<summary>foldergram/foldergram (foldergram/foldergram)</summary>

### [`v1.0.6`](https://github.com/foldergram/foldergram/releases/tag/v1.0.6)

[Compare Source](https://github.com/foldergram/foldergram/compare/v1.0.5...v1.0.6)

- Added admin-only folder customization: rename folders in-app without changing filesystem names, and add an optional folder description.
- Added admin-only “Set as Cover” from the image viewer to choose any image in a folder as that folder’s avatar.
- Added support for filesystem-based folder covers using `cover.jpg`, `cover.jpeg`, `cover.png`, `cover.webp`, or `cover.gif`.
- Cover-file detection now works for nested child albums, not just top-level folders.
- Cover filenames are now treated case-insensitively, so files like `Cover.jpg` work the same as `cover.jpg`.
- Active cover files are hidden from the feed and folder grid so they do not appear as duplicate posts.
- Manual folder names, descriptions, and UI-selected covers now persist across normal rescans and startup scans instead of being overwritten.
- Folder avatars are now clickable on the folder page and open the currently active avatar image in the existing `ImageModal`.
- Hidden cover images can now still open in the viewer when they are the folder’s active avatar.
- Added an admin-only `Home Feed Default` setting under `Scan & Library` to choose whether Home opens with Random, Recent, or Rediscover.
- The homepage now uses the saved app-wide feed default on first load instead of relying on a hardcoded mode.
- `Random` remains the single fallback and default when no home-feed preference has been configured yet.
- Viewers can still switch feed modes from the Home page without changing the saved admin default.
- Added regression coverage for rescan persistence, child-album cover detection, case-insensitive cover hiding, active-avatar opening behavior, and home-feed default validation/status handling.

</details>

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This PR has been generated by [Renovate Bot](https://github.com/renovatebot/renovate).
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Reviewed-on: #5049
Co-authored-by: Renovate Bot <renovate-bot@alexlebens.net>
Co-committed-by: Renovate Bot <renovate-bot@alexlebens.net>

clusters/cl01tl/helm/foldergram/Chart.yaml

@@ -22,4 +22,4 @@ dependencies:
     repository: oci://harbor.alexlebens.net/helm-charts
 icon: https://raw.githubusercontent.com/foldergram/foldergram/refs/heads/main/client/public/icon-512.png
 # renovate: datasource=github-releases depName=foldergram/foldergram
-appVersion: v1.0.5
+appVersion: v1.0.6

clusters/cl01tl/helm/foldergram/values.yaml

@@ -9,7 +9,7 @@ foldergram:
         main:
           image:
             repository: ghcr.io/foldergram/foldergram
-            tag: 1.0.5
+            tag: 1.0.6
             pullPolicy: IfNotPresent
           env:
             - name: IMAGE_DETAIL_SOURCE