日本語と英語が混ざった文章に間が開いてしまうのを修正

Author: shiro8613

Diff for: core/src/main/java/dev/felnull/itts/core/dict/RegexUtil.java

@@ -78,7 +78,7 @@ public String replaceText(String text) {
             createdText.add(txt);
         }
 
-        return String.join(" ", createdText);
+        return String.join("", createdText);
     }
 
 
@@ -111,4 +111,4 @@ public RegexOption(int priority, String replacedText, Function<String, Boolean>
         }
     }
 
-}
+}