:paint: Fix label style to make it closer to field

dev-front/src/App.css

@@ -6,6 +6,10 @@ header {
   font-size: calc(10px + 2vmin);
 }
 
+label {
+    margin: 1rem 0 0 0;
+}
+
 .app {
     display: flex;
     flex-direction: column;