fix some multi_apps task (#243)

* fix chrome

* fix: fix proxy setup

* feat&fix: add proxy support in setup and remove hardcoded proxy from example

* fix tasks

* fix chrome finished

* fix

* clean chrome_fix code

* clean chrome_fix code

* fix chrome 2888b4e6-5b47-4b57-8bf5-c73827890774

* fix multiapps

* fix chrome 2888b4e6-5b47-4b57-8bf5-c73827890774

* fix some multi_apps tasks

* fix some multi_apps tasks

---------

Co-authored-by: adlsdztony <zzl0712@connect.hku.hk>

evaluation_examples/examples/multi_apps/778efd0a-153f-4842-9214-f05fc176b877.json

@@ -28,11 +28,8 @@
     {
       "type": "launch",
       "parameters": {
-        "command": [
-          "vlc",
-          "--repeat",
-          "/home/user/Desktop/planet.mp4"
-        ]
+        "command": "vlc",
+        "shell": true
       }
     }
   ],