Added styling for dark theme in DeleteSchedule.css

Author: gayathripoluri

src/wwwroot/css/DeleteSchedule.css

@@ -52,3 +52,13 @@
 .confirm-button {
     padding: 0.375rem 0.75rem;
 }
+
+instruction-text {
+    color: #333333; /* Default for light mode */
+    font-weight: 500;
+}
+
+/* Override for dark theme */
+body.dark-theme .instruction-text {
+    color: black; /* Soft off-white for dark mode */
+}