patch: minor bug fixes for evaluator and task configurations, documentation update (#121)

* fix: /cursor_position api return format fix

* chore: update README.md to remove deprecated command

* fix: add base score for evaluators and minor bug fixes

* fix: add base score for setup configurations

---------

Co-authored-by: Jiaqi Deng <jiaqideng@Jiaqis-MacBook-Pro.local>

evaluation_examples/examples/os/a4d98375-215b-4a4d-aee9-3d4370fccc41.json

@@ -5,6 +5,18 @@
   "source": "https://help.ubuntu.com/lts/ubuntu-help/privacy-screen-lock.html.en",
   "trajectory": "trajectories/",
   "config": [
+    {
+      "type": "execute",
+      "parameters": {
+        "command": [
+          "gsettings",
+          "set",
+          "org.gnome.desktop.screensaver",
+          "lock-enabled",
+          "false"
+        ]
+      }
+    },
     {
       "type": "execute",
       "parameters": {

evaluation_examples/examples/os/bedcedc4-4d72-425e-ad62-21960b11fe0d.json

@@ -5,6 +5,18 @@
   "source": "https://www.youtube.com/watch?v=D4WyNjt_hbQ&t=2s",
   "trajectory": "trajectories/",
   "config": [
+    {
+      "type": "execute",
+      "parameters": {
+        "command": [
+          "gsettings",
+          "set",
+          "org.gnome.desktop.session",
+          "idle-delay",
+          "1"
+        ]
+      }
+    },
     {
       "type": "execute",
       "parameters": {