💄 Improve the animation for opening dialog

fix #15085

Author: TCOTC

app/src/constants.ts

@@ -225,6 +225,7 @@ export abstract class Constants {
     public static readonly DIALOG_SAVEWORKSPACE = "dialog-saveworkspace"; // 保存工作空间
 
     // timeout
+    public static readonly TIMEOUT_OPENDIALOG = 50;
     public static readonly TIMEOUT_DBLCLICK = 190;
     public static readonly TIMEOUT_INPUT = 256;
     public static readonly TIMEOUT_LOAD = 300;

app/src/dialog/index.ts

@@ -78,7 +78,7 @@ left:${left || "auto"};top:${top || "auto"}">
         } else {
             setTimeout(() => {
                 this.element.classList.add("b3-dialog--open");
-            });
+            }, Constants.TIMEOUT_OPENDIALOG);
         }
         /// #if !MOBILE
         moveResize(this.element.querySelector(".b3-dialog__container"), options.resizeCallback);