Added bookshelves homepage options

- Updated homepage selection UI to be more scalable
- Cleaned homepage selection logic in code
- Added seed test data for bookshelves
- Added bookshelves to permission system

resources/assets/js/components/homepage-control.js

@@ -0,0 +1,22 @@
+
+class HomepageControl {
+
+    constructor(elem) {
+        this.elem = elem;
+        this.typeControl = elem.querySelector('[name="setting-app-homepage-type"]');
+        this.pagePickerContainer = elem.querySelector('[page-picker-container]');
+
+        this.typeControl.addEventListener('change', this.controlPagePickerVisibility.bind(this));
+        this.controlPagePickerVisibility();
+    }
+
+    controlPagePickerVisibility() {
+        const showPagePicker = this.typeControl.value === 'page';
+        this.pagePickerContainer.style.display = (showPagePicker ? 'block' : 'none');
+    }
+
+
+
+}
+
+module.exports = HomepageControl;