chore: disable python unit testing extension for auxillary workspaces: Frontend, Backend, AppData

Author: dsisco11

.devcontainer/InvokeAI.code-workspace

@@ -3,7 +3,12 @@
     {
       // Folder for the invokeai program data (located at filesystem root)
       "name": "[AppData]",
-      "path": "/home/node/invokeai"
+      "path": "/home/node/invokeai",
+      "settings": {
+        "python.testing.pytestEnabled": false,
+        "python.testing.unittestEnabled": false,
+        "python.testing.autoTestDiscoverOnSaveEnabled": false
+      }
     },
     {
       "name": "[Custom Nodes]",
@@ -12,12 +17,22 @@
     {
       // Folder for specifically the frontend sub-project
       "name": "[Frontend]",
-      "path": "../invokeai/frontend/web"
+      "path": "../invokeai/frontend/web",
+      "settings": {
+        "python.testing.pytestEnabled": false,
+        "python.testing.unittestEnabled": false,
+        "python.testing.autoTestDiscoverOnSaveEnabled": false
+      }
     },
     {
       // Folder for specifically the backend sub-project
       "name": "[Backend]",
-      "path": "../invokeai/backend"
+      "path": "../invokeai/backend",
+      "settings": {
+        "python.testing.pytestEnabled": false,
+        "python.testing.unittestEnabled": false,
+        "python.testing.autoTestDiscoverOnSaveEnabled": false
+      }
     },
     {
       // Folder for the entire git repo.