add layout for remaining processors/modules and order everything

src/content/docs/processors/string/decode.md

@@ -1,6 +1,7 @@
 ---
-title: String Decode
+title: Decode String
 sidebar:
+    label: Decode
     order: 1
 ---
 The `string.decode` processor takes a array of bytes and turn it into string. This processor will return an error if the message being processed is not an array of bytes.