Fix typo Costum:Custom

Signed-off-by: Eduardo Reyes <tred27@gmail.com>

assets/src/components/ProfileSettings.vue

@@ -14,7 +14,7 @@
     </form>
 
     <form @submit="updateCSS">
-      <h2>Costum Stylesheet</h2>
+      <h2>Custom Stylesheet</h2>
       <textarea v-model="css" name="css"></textarea>
       <p><input type="submit" value="Update"></p>
     </form>

assets/src/components/User.vue

@@ -45,7 +45,7 @@
 
     <textarea v-model.trim="rules"></textarea>
 
-    <h2>Costum Stylesheet</h2>
+    <h2>Custom Stylesheet</h2>
 
     <textarea name="css"></textarea>
 

filemanager.go

@@ -80,7 +80,7 @@ type User struct {
 	// Rules is an array of access and deny rules.
 	Rules []*Rule `json:"rules"`
 
-	// Costum styles for this user.
+	// Custom styles for this user.
 	CSS string `json:"css"`
 
 	// These indicate if the user can perform certain actions.