hardcode content.action.edit feature and palette

Author: agentbellnorm

Diff for: src/core.py

@@ -63,6 +63,9 @@ def on_config(self, config):
             config["theme"]["features"] = []
 
         config["theme"]["features"].append("navigation.footer")
+        config["theme"]["features"].append("content.action.edit")
+
+        config["theme"]["palette"] = ""
 
         config["theme"].static_templates.update({"techdocs_metadata.json"})
         config["theme"].dirs.append(self.tmp_dir_techdocs_theme.name)