add: anonymous username and anonymous avatar

crates/app/src/public/html/profile/settings.html

@@ -799,6 +799,17 @@
                         settings.motivational_header,
                         "input",
                     ],
+                    [[], "Anonymous", "title"],
+                    [
+                        ["anonymous_username", "Anonymous username"],
+                        settings.anonymous_username,
+                        "input",
+                    ],
+                    [
+                        ["anonymous_avatar_url", "Anonymous avatar URL"],
+                        settings.anonymous_avatar_url,
+                        "input",
+                    ],
                 ],
                 settings,
             );