DOC: move favicon.ico to root

Author: redeboer

.pre-commit-config.yaml

@@ -142,7 +142,7 @@ repos:
         always_run: true
         exclude: >
           (?x)^(
-            docs/_static/favicon.ico
+            docs/favicon.ico
           )$
 
   - repo: https://github.com/ComPWA/pyright-pre-commit

docs/conf.py

@@ -83,7 +83,8 @@
 html_css_files = [
     "https://cdnjs.cloudflare.com/ajax/libs/font-awesome/6.1.1/css/all.min.css",
 ]
-html_favicon = "_static/favicon.ico"
+html_extra_path = ["favicon.ico"]
+html_favicon = "favicon.ico"
 html_js_files = [
     "https://cdn.datatables.net/1.13.6/js/jquery.dataTables.min.js",
     "https://cdnjs.cloudflare.com/ajax/libs/require.js/2.3.4/require.min.js",