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

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

@@ -0,0 +1,75 @@
+import 'package:flutter/material.dart';
+import 'package:immich_mobile/modules/home/ui/delete_diaglog.dart';
+
+class ControlBottomAppBar extends StatelessWidget {
+  const ControlBottomAppBar({Key? key}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Positioned(
+      bottom: 0,
+      left: 0,
+      child: Container(
+        width: MediaQuery.of(context).size.width,
+        height: MediaQuery.of(context).size.height * 0.15,
+        decoration: BoxDecoration(
+          borderRadius: const BorderRadius.only(topLeft: Radius.circular(15), topRight: Radius.circular(15)),
+          color: Colors.grey[300]?.withOpacity(0.98),
+        ),
+        child: Column(
+          children: [
+            Padding(
+              padding: const EdgeInsets.symmetric(vertical: 10, horizontal: 20),
+              child: Row(
+                mainAxisAlignment: MainAxisAlignment.center,
+                children: [
+                  ControlBoxButton(
+                    iconData: Icons.delete_forever_rounded,
+                    label: "Delete",
+                    onPressed: () {
+                      showDialog(
+                        context: context,
+                        builder: (BuildContext context) {
+                          return const DeleteDialog();
+                        },
+                      );
+                    },
+                  ),
+                ],
+              ),
+            )
+          ],
+        ),
+      ),
+    );
+  }
+}
+
+class ControlBoxButton extends StatelessWidget {
+  const ControlBoxButton({Key? key, required this.label, required this.iconData, required this.onPressed})
+      : super(key: key);
+
+  final String label;
+  final IconData iconData;
+  final Function onPressed;
+
+  @override
+  Widget build(BuildContext context) {
+    return SizedBox(
+      width: 60,
+      child: Column(
+        mainAxisAlignment: MainAxisAlignment.start,
+        crossAxisAlignment: CrossAxisAlignment.start,
+        children: [
+          IconButton(
+            onPressed: () {
+              onPressed();
+            },
+            icon: Icon(iconData, size: 30),
+          ),
+          Text(label)
+        ],
+      ),
+    );
+  }
+}