Fixed broken build

babel.config.js

@@ -1,5 +1,5 @@
 module.exports = {
-  presets: [
-    '@vue/cli-plugin-babel/preset'
-  ]
-}
+    presets: [
+        '@vue/cli-plugin-babel/preset'
+    ]
+};

src/photomound.vue

@@ -113,7 +113,7 @@ html, body {
 
     .main {
         display: flex;
-        height: calc(100% - $menu-height);
+        height: calc(100% - #{$menu-height});
         padding: $spacing-medium;
         @include boxSize();
     }