adjust audio input system regex to be more inclusive (#1604)

Per a user's report, their audio input system was not properly detected in LF due to a too-strict regex. This loosens the regex a bit to allow LF to properly identify the field as an audio input system.

With this change, a tag must have "-Zxxx" and end with "audio"

Before this change, a non-standard input system tag like lwl-Zxxx-x-minority-audio is not detected as an audio input system (although FLEx handles it fine). After this change, this input system tag should work.

Author: megahirt

src/angular-app/bellows/core/utility.service.ts

@@ -24,7 +24,7 @@ export class UtilityService {
   }
 
   static isAudio(tag: string): boolean {
-    const tagAudioPattern = /^\w{2,3}-Zxxx-x(-\w{2,3})*-[aA][uU][dD][iI][oO]$/;
+    const tagAudioPattern = /^\w{2,3}-Zxxx-x-.*[aA][uU][dD][iI][oO]$/;
     return tagAudioPattern.test(tag);
   }