implemented snapshot diff; started work on admin settings

lib/Sections/SnapshotsSection.php

@@ -0,0 +1,32 @@
+<?php
+namespace OCA\GroupfolderFilesystemSnapshots\Sections;
+
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\Settings\IIconSection;
+
+class SnapshotsSection implements IIconSection {
+    private IL10N $l;
+    private IURLGenerator $urlGenerator;
+
+    public function __construct(IL10N $l, IURLGenerator $urlGenerator) {
+        $this->l = $l;
+        $this->urlGenerator = $urlGenerator;
+    }
+
+    public function getIcon(): string {
+        return $this->urlGenerator->imagePath('core', 'actions/settings-dark.svg');
+    }
+
+    public function getID(): string {
+        return 'groupfolder_filesystem_snapshots';
+    }
+
+    public function getName(): string {
+        return $this->l->t('Groupfolder Filesystem Snapshots');
+    }
+
+    public function getPriority(): int {
+        return 98;
+    }
+}