Fix guides being lowercase

main.js

@@ -141,18 +141,17 @@ client.on("message", m => {
 
     if (m.mentions.users.first().id == client.user.id) {
         let content = m.cleanContent
-            .substring(`@${client.user.username} `.length)
-            .toLowerCase();
-
+            .substring(`@${client.user.username} `.length);
+        let lowerCaseContent = content.toLowerCase();
         for (let c in commands) {
-            if (content.startsWith(c)) {
+            if (lowerCaseContent.startsWith(c)) {
                 commands[c](m, content);
                 return;
             }
         }
 
-        if (content.length > 0) {
-            let parts = content.trim().split(" ");
+        if (lowerCaseContent.length > 0) {
+            let parts = lowerCaseContent.trim().split(" ");
             let guide = db
                 .get("guides")
                 .maxBy(k => db._.intersection(parts, k.name.split(" ")).length)