Misc website mobile polish (#648)

* Reduce top section bottom padding on mobile

* Clean up mobile branded CTA overlap

website/components/branded-cta/branded-cta.module.css

@@ -9,11 +9,11 @@
     background-position: bottom 0 right -130px;
   }
 
-  @media (462px <= width < 600px) {
+  @media (438px <= width < 600px) {
     background-position: bottom 0 right -260px;
   }
 
-  @media (width < 462px) {
+  @media (width < 438px) {
     background-position: bottom 0 right -170px;
   }
 }

website/components/how-it-works/how-it-works.module.css

@@ -72,6 +72,10 @@
       & > div {
         padding-bottom: 355px;
         margin-bottom: -200px;
+        @media (--small) {
+          padding-bottom: 0;
+          margin-bottom: 0;
+        }
       }
     }