尝试优化Inspector的排版

在输数字的地方输入框的输入限制可以改成十进制数，这样就不会因为输了字母然后报错了

Assets/Scripts/DynamicUI/Timeline/MusicPlayer.cs

@@ -26,10 +26,11 @@ namespace Ichni.Editor
 
         public void PlayMusic()
         {
-            isPlaying = true;
+            isPlaying = !isPlaying;
             Trail.SetAllTrails(true, false);
             EditorManager.instance.songInformation.songTime = audioSource.time;
-            audioSource.Play();
+            if( isPlaying)audioSource.Play();
+           else  audioSource.Pause();
         }
         
         public void PauseMusic()

Assets/Scripts/DynamicUI/Timeline/Timeline.cs

@@ -14,4 +14,5 @@ namespace Ichni.Editor
         public TimePointerModule timePointerModule;
         public MusicPlayer musicPlayer;
     }
+    
 }

Assets/Scripts/DynamicUI/Timeline/TimelineElement.meta

@@ -0,0 +1,8 @@
+fileFormatVersion: 2
+guid: b6eb61dffe3843041b021e96e9c7cb0b
+folderAsset: yes
+DefaultImporter:
+  externalObjects: {}
+  userData: 
+  assetBundleName: 
+  assetBundleVariant: