fix: Change notification group id in plugin.xml caused by fast refactoring

Author: ByteAurora

src/main/resources/META-INF/plugin.xml

@@ -13,7 +13,7 @@
                     anchor="right"
                     id="CodeXP Dashboard" icon="icons/toolWindowIcon.svg" />
         <applicationService serviceImplementation="com.github.ilovegamecoding.intellijcodexp.services.CodeXPService"/>
-        <notificationGroup displayType="BALLOON" id="CodeXP Dashboard"/>
+        <notificationGroup displayType="BALLOON" id="CodeXP"/>
     </extensions>
 
     <application-components>