update: height of pages + bug on project edit form

src/styles/base/main.scss

@@ -348,6 +348,14 @@ h5 {
   }
 }
 
+.content-box__height {
+  height: calc(100vh - 50px - 56px); /* Heights of main header and sub-header */
+
+  @include breakpoint(lg) {
+    height: calc(100vh - 83px - 84px);
+  }
+}
+
 .content-box__info {
   flex-direction: column;
   padding: 3.2rem;