fix: Replace Universal Analytics tag with GA4 tag in the docs (#183)

* Switch to GA4

* Use proper tracking ID

doc/conf.py

@@ -232,9 +232,35 @@
 
 # xanadu theme options (see theme.conf for more information)
 html_theme_options = {
-    "navbar_name": "PennyLane-Braket",
-    "toc_overview": True,
-    "navbar_active_link": 3,
+    # Set the path to a special layout to include for the homepage
+    # "index_template": "special_index.html",
+    # Set the name of the project to appear in the left sidebar.
+    "project_nav_name": "PennyLane-Braket",
+    # Set your Disqus short name to enable comments
+    # "disqus_comments_shortname": "pennylane-1",
+    # Set you GA account ID to enable tracking
+    "google_analytics_account": "G-C480Z9JL0D",
+    # Path to a touch icon
+    "touch_icon": "logo_new.png",
+    # Specify a base_url used to generate sitemap.xml links. If not
+    # specified, then no sitemap will be built.
+    # "base_url": ""
+    # Allow a separate homepage from the master_doc
+    # "homepage": "index",
+    # Allow the project link to be overriden to a custom URL.
+    # "projectlink": "http://myproject.url",
+    "large_toc": True,
+    # colors
+    "navigation_button": "#19b37b",
+    "navigation_button_hover": "#0e714d",
+    "toc_caption": "#19b37b",
+    "toc_hover": "#19b37b",
+    "table_header_bg": "#edf7f4",
+    "table_header_border": "#19b37b",
+    "download_button": "#19b37b",
+    # gallery options
+    # "github_repo": "XanaduAI/PennyLane",
+    # "gallery_dirs": "tutorials",
 }
 
 edit_on_github_project = "aws/amazon-braket-pennylane-plugin-python"