Implemented bottom app bar with control buttons for asset's operation (#15)

mobile/lib/modules/home/ui/disable_multi_select_button.dart

@@ -0,0 +1,47 @@
+import 'package:flutter/material.dart';
+import 'package:hooks_riverpod/hooks_riverpod.dart';
+import 'package:immich_mobile/modules/home/providers/home_page_state.provider.dart';
+
+class DisableMultiSelectButton extends ConsumerWidget {
+  const DisableMultiSelectButton({
+    Key? key,
+    required this.onPressed,
+    required this.selectedItemCount,
+  }) : super(key: key);
+
+  final Function onPressed;
+  final int selectedItemCount;
+
+  @override
+  Widget build(BuildContext context, WidgetRef ref) {
+    return Positioned(
+      top: 0,
+      left: 0,
+      child: Padding(
+        padding: const EdgeInsets.only(left: 16.0, top: 46),
+        child: Material(
+          elevation: 20,
+          borderRadius: BorderRadius.circular(35),
+          child: Container(
+            decoration: BoxDecoration(
+              borderRadius: BorderRadius.circular(35),
+              color: Colors.grey[100],
+            ),
+            child: Padding(
+              padding: const EdgeInsets.symmetric(horizontal: 4.0),
+              child: TextButton.icon(
+                  onPressed: () {
+                    onPressed();
+                  },
+                  icon: const Icon(Icons.close_rounded),
+                  label: Text(
+                    selectedItemCount.toString(),
+                    style: const TextStyle(fontWeight: FontWeight.w600, fontSize: 18),
+                  )),
+            ),
+          ),
+        ),
+      ),
+    );
+  }
+}