Refactor devcontainer setup: update open files, remove obsolete extension installation script, and streamline post-creation commands

Author: ericbusboom

.devcontainer/devcontainer.json

@@ -39,7 +39,7 @@
 	"customizations": {
 	    "codespaces": {
 	      "openFiles": [
-			"README.md"
+			"lessons/10_Module_1/10_Getting_Started.ipynb"
 		  ]
 	    },
 	    "vscode": {
@@ -48,7 +48,7 @@
 	        "ms-python.debugpy",
 			"ms-python.isort",
 			"ms-toolsai.jupyter",
-			"https://github.com/league-infrastructure/league-vscode-ext/releases/download/v1.20250530.2/jtl-syllabus-v1.20250530.2.vsix"
+			"jointheleague.jtl-syllabus"
 	      ], 
 		  "settings": {
 			"python.defaultInterpreterPath": "/usr/local/bin/python",

.devcontainer/install-extensions.sh

@@ -1,16 +1,11 @@
 #!/bin/bash
 
-ext_url='https://github.com/league-infrastructure/league-vscode-ext/releases/download/v1.20250530.2/jtl-syllabus-v1.20250530.2.vsix'
-ext_path=/vscode/extensionsCache/jtl-syllabus.vsix
+# Update pip to the latest version
+python3 -m pip install --upgrade pip
 
-# Download the extension
-curl -L -o "$ext_path" "$ext_url"
-if [ -f "$ext_path" ]; then
-    echo "Downloaded JTL Syllabus extension to $ext_path"
+# Check if requirements.txt exists in the root of the workspace
+if [ -f "requirements.txt" ]; then
+    pip3 install -r requirements.txt
 
 else
-    echo "Failed to download JTL Syllabus extension."
-fi
 
-# Install the Python package regardless
-pipx install jtl-syllabus