UI improvements

lib/widgets/enter_search_term_screen.dart

@@ -11,28 +11,30 @@ class EnterSearchTermScreen extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return Padding(
-      padding: const EdgeInsets.all(16),
+      padding: const EdgeInsets.all(24),
       child: Row(
         mainAxisAlignment: MainAxisAlignment.center,
         children: [
-          Column(
-            mainAxisAlignment: MainAxisAlignment.center,
-            children: [
-              Icon(
-                Icons.search_rounded,
-                size: 50,
-                color: Theme.of(context).colorScheme.onSurfaceVariant,
-              ),
-              const SizedBox(height: 30),
-              Text(
-                message,
-                textAlign: TextAlign.center,
-                style: TextStyle(
-                  fontSize: 24,
+          Expanded(
+            child: Column(
+              mainAxisAlignment: MainAxisAlignment.center,
+              children: [
+                Icon(
+                  Icons.search_rounded,
+                  size: 50,
                   color: Theme.of(context).colorScheme.onSurfaceVariant,
                 ),
-              ),
-            ],
+                const SizedBox(height: 30),
+                Text(
+                  message,
+                  textAlign: TextAlign.center,
+                  style: TextStyle(
+                    fontSize: 24,
+                    color: Theme.of(context).colorScheme.onSurfaceVariant,
+                  ),
+                ),
+              ],
+            ),
           ),
         ],
       ),