Style tweak to watch form

changedetectionio/static/styles/styles.css

@@ -196,7 +196,8 @@ body:after, body:before {
   #new-watch-form .label {
     display: none; }
   #new-watch-form legend {
-    color: #fff; }
+    color: #fff;
+    font-weight: bold; }
 
 #diff-col {
   padding-left: 40px; }

changedetectionio/static/styles/styles.scss

@@ -262,6 +262,7 @@ body:after, body:before {
   }
   legend {
     color: #fff;
+    font-weight: bold;
   }
 }