Add note for default presets

src/assets/css/key-binding-dialog.styl

@@ -16,7 +16,7 @@
     margin-right: -50%;
     transform: translate(-50%, -50%);
     min-width: 420px;
-    padding: 20px;
+    padding: 16px;
     border-radius: 8px;
     z-index: var(--bx-key-binding-dialog-z-index);
     background: #1a1b1e;

src/assets/css/navigation-dialog.styl

@@ -45,7 +45,7 @@
     width: 450px;
     max-width: calc(100vw - 20px);
     margin: 0 0 0 auto;
-    padding: 20px;
+    padding: 16px;
 
     max-height: 95vh;
     flex-direction: column;
@@ -90,6 +90,13 @@
             flex: 1;
         }
     }
+
+    .bx-default-preset-note {
+        font-size: 0.8rem;
+        font-style: italic;
+        text-align: center;
+        margin-bottom: 10px;
+    }
 }
 
 .bx-centered-dialog,

src/assets/css/remote-play.styl

@@ -10,7 +10,7 @@
     width: 420px;
     max-width: calc(100vw - 20px);
     margin: 0 0 0 auto;
-    padding: 20px;
+    padding: 16px;
 
     > .bx-button {
         display: table;