improve service names (#54)

- embedding-server => model_server
- public-types => public_types
- chatbot-ui => chatbot_ui
- function-calling => function_calling

chatbot_ui/.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "chatbot-ui",
+      "cwd": "${workspaceFolder}/app",
+      "type": "debugpy",
+      "request": "launch",
+      "program": "run.py",
+      "console": "integratedTerminal",
+    }
+  ]
+}