Special keywords are not excluded as duplicates

Special keywords like AND and BREAK might be written multiple times
within the prompt, so I've made changes to ensure they are not excluded
even if they appear duplicated.

javascript/prompt_format.js

@@ -53,10 +53,15 @@
 				if (!cleanArray.includes(cleanedTag)) {
 					cleanArray.push(cleanedTag)
 					finalArray.push(tag)
-				} else {
-					finalArray.push(tag.replace(cleanedTag, ''))
+					return
 				}
 
+				if (/^(AND|BREAK)$/.test(cleanedTag)) {
+					finalArray.push(tag)
+					return
+				}
+
+				finalArray.push(tag.replace(cleanedTag, ''))
 			})
 
 			input = finalArray.join(', ')