fix(sidebar): no margin on mobile (#89)

Author: posva

src/client/theme-default/styles/layout.css

@@ -91,6 +91,12 @@ main {
   }
 }
 
+@media screen and (max-width: 719px) {
+  main {
+    margin-left: 0;
+  }
+}
+
 a {
   text-decoration: none;
 }

src/client/theme-default/styles/vars.css

@@ -1,7 +1,7 @@
 .theme {
   --border-color: rgb(226, 232, 240);
   --header-height: 3.6rem;
-  --sidebar-width: 20rem;
+  --sidebar-width: 16.4rem;
   --text-color: #2c3e50;
   --text-color-light: #476582;
   --code-bg-color: #282c34;