Fix share copy-link, destination-picker filters, and type-filter UX

- SharesController's fetchShares() built NextcloudShare objects through
  its own thin inline parser instead of _shareFromJson, so url/token/
  permissions/expireDate were always null - a public link share could
  never show "Copy link" in the Shares tab. Reuses _shareFromJson.
- Upload/Move/Copy's destination picker hid External storage in its
  filter sheet (showStorageScope: false) unlike Files' own controls
  row, despite the design doc already calling for full parity.
- Files' and Photos' type filter (All/Files/Folders, All/Photos/Videos)
  now render as one consistent style in both filter sheets: every icon
  always shown, label only on the selected segment
  (NooSegmentedControl's new labelOnlySelected), replacing Files' old
  checkmark list and Photos' own always-labelled track.
- Fixes Photos' type filter only visually updating after closing and
  reopening the filter sheet - it lived on PhotosView's own State, so
  Listenable.merge([photos, files]) never rebuilt the sheet when it
  changed; a StatefulBuilder now gives it that trigger.
- Replaces Settings' trailing section jump rail with per-section
  collapsible cards (NooGroupedList's new collapsible param, expanded
  by default) - one less parallel way to navigate a long screen.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

test/widgets/noo/core_test.dart

@@ -369,6 +369,46 @@ void main() {
         const Size(78, 34),
       );
     });
+
+    testNooWidgets(
+      'labelOnlySelected shows every icon but only the selected label',
+      (tester, theme, c) async {
+        var value = 'all';
+        await pumpNoo(
+          tester,
+          StatefulBuilder(
+            builder: (context, setState) => NooSegmentedControl<String>(
+              fill: true,
+              labelOnlySelected: true,
+              value: value,
+              onChanged: (v) => setState(() => value = v),
+              options: const [
+                NooSegmentOption(
+                  value: 'all',
+                  icon: LucideIcons.layoutGrid,
+                  label: 'All',
+                ),
+                NooSegmentOption(
+                  value: 'files',
+                  icon: LucideIcons.file,
+                  label: 'Files',
+                ),
+              ],
+            ),
+          ),
+          theme: theme,
+        );
+        expect(find.byIcon(LucideIcons.layoutGrid), findsOneWidget);
+        expect(find.byIcon(LucideIcons.file), findsOneWidget);
+        expect(find.text('All'), findsOneWidget);
+        expect(find.text('Files'), findsNothing);
+
+        await tester.tap(find.byIcon(LucideIcons.file));
+        await tester.pump();
+        expect(find.text('Files'), findsOneWidget);
+        expect(find.text('All'), findsNothing);
+      },
+    );
   });
 
   group('NooToggle', () {

test/widgets/noo/lists_test.dart

@@ -105,6 +105,69 @@ void main() {
       // Rows paint their own surface; the gaps show the list's line fill.
       expect(decorationOf(tester, find.byKey(const Key('r1'))).color, c.line);
     });
+
+    testNooWidgets('collapsible starts expanded, tapping the label hides '
+        'and re-shows the card', (tester, theme, c) async {
+      await pumpNoo(
+        tester,
+        SizedBox(
+          width: 360,
+          child: NooGroupedList(
+            label: 'Appearance',
+            collapsible: true,
+            children: [
+              Container(key: const Key('r1'), height: 52, color: c.surface),
+            ],
+          ),
+        ),
+        theme: theme,
+      );
+      expect(find.byIcon(LucideIcons.chevronDown), findsOneWidget);
+      expect(tester.getSize(find.byKey(const Key('r1'))).height, 52);
+      AnimatedCrossFade crossFade() =>
+          tester.widget<AnimatedCrossFade>(find.byType(AnimatedCrossFade));
+      expect(crossFade().crossFadeState, CrossFadeState.showFirst);
+
+      await tester.tap(find.text('Appearance'));
+      await tester.pump();
+      expect(crossFade().crossFadeState, CrossFadeState.showSecond);
+      expect(
+        tester.widget<AnimatedRotation>(find.byType(AnimatedRotation)).turns,
+        0,
+      );
+
+      await tester.tap(find.text('Appearance'));
+      await tester.pump();
+      expect(crossFade().crossFadeState, CrossFadeState.showFirst);
+      expect(
+        tester.widget<AnimatedRotation>(find.byType(AnimatedRotation)).turns,
+        0.5,
+      );
+    });
+
+    testNooWidgets('non-collapsible has no chevron and ignores label taps', (
+      tester,
+      theme,
+      c,
+    ) async {
+      await pumpNoo(
+        tester,
+        SizedBox(
+          width: 360,
+          child: NooGroupedList(
+            label: 'Accounts',
+            children: [
+              Container(key: const Key('r1'), height: 52, color: c.surface),
+            ],
+          ),
+        ),
+        theme: theme,
+      );
+      expect(find.byIcon(LucideIcons.chevronDown), findsNothing);
+      await tester.tap(find.text('Accounts'));
+      await tester.pumpAndSettle();
+      expect(tester.getSize(find.byKey(const Key('r1'))).height, 52);
+    });
   });
 
   group('NooSelectionBar', () {