Add a menu for installing extensions

modules/github.py

@@ -0,0 +1,28 @@
+import os
+import subprocess
+
+def clone_or_pull_repository(github_url):
+    repository_folder = "extensions"
+    repo_name = github_url.split("/")[-1].split(".")[0]
+
+    # Check if the repository folder exists
+    if not os.path.exists(repository_folder):
+        os.makedirs(repository_folder)
+
+    repo_path = os.path.join(repository_folder, repo_name)
+
+    # Check if the repository is already cloned
+    if os.path.exists(repo_path):
+        # Perform a 'git pull' to update the repository
+        try:
+            pull_output = subprocess.check_output(["git", "-C", repo_path, "pull"], stderr=subprocess.STDOUT)
+            return pull_output.decode()
+        except subprocess.CalledProcessError as e:
+            return str(e)
+
+    # Clone the repository
+    try:
+        clone_output = subprocess.check_output(["git", "clone", github_url, repo_path], stderr=subprocess.STDOUT)
+        return clone_output.decode()
+    except subprocess.CalledProcessError as e:
+        return str(e)