将hap包改成单例模式，.Signed-off-by: <zhouke35@huawei.com>.

Signed-off-by: Nzhouke <zhouke35@huawei.com>

arkXtest/uitest/src/main/config.json

@@ -49,7 +49,7 @@
         "formsEnabled": false,
         "label": "$string:entry_MainAbility",
         "type": "page",
-        "launchType": "standard"
+        "launchType": "singleton"
       },
       {
         "orientation": "unspecified",
@@ -62,7 +62,7 @@
         "description": "$string:TestAbility_desc",
         "label": "$string:TestAbility_label",
         "type": "page",
-        "launchType": "standard"
+        "launchType": "singleton"
       }
     ],
     "js": [

arkXtest/uitestScene/src/main/config.json

@@ -49,7 +49,7 @@
         "formsEnabled": false,
         "label": "$string:entry_MainAbility",
         "type": "page",
-        "launchType": "standard"
+        "launchType": "singleton"
       }
     ],
     "js": [