feat: Integrate Copilot CLI as a feature in devcontainer and remove installation script

Author: glav

.devcontainer/devcontainer.json

@@ -39,7 +39,8 @@
             "moby": false
         },
         "ghcr.io/stuartleeks/dev-container-features/shell-history:0": {},
-        "ghcr.io/devcontainers/features/azure-cli:1.2.5": {}
+        "ghcr.io/devcontainers/features/azure-cli:1.2.5": {},
+        "ghcr.io/devcontainers/features/copilot-cli:1": {}
 
 
     },

.devcontainer/install-copilot-cli.sh

@@ -43,8 +43,6 @@ install_uv() {
 
 install_uv
 
-bash .devcontainer/install-copilot-cli.sh
-
 echo ----------------------------------------------
 echo If you want help using the prompt library or list
 echo of available prompts, simply type: