Added theme modal

lib/screens/settings/section_label.dart

@@ -0,0 +1,29 @@
+import 'package:flutter/material.dart';
+
+class SectionLabel extends StatelessWidget {
+  final String label;
+
+  const SectionLabel({
+    Key? key,
+    required this.label
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Row(
+      mainAxisAlignment: MainAxisAlignment.start,
+      children: [
+        Padding(
+          padding: const EdgeInsets.all(25),
+          child: Text(
+            label,
+            style: const TextStyle(
+              fontWeight: FontWeight.w500,
+              fontSize: 16
+            ),
+          ),
+        ),
+      ],
+    );
+  }
+}