Refine .idea project settings and CSS styles

.idea/ClubManager.iml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
+<module external.system.id="pyproject.toml" type="PYTHON_MODULE" version="4">
   <component name="FacetManager">
     <facet type="django" name="Django">
       <configuration>
@@ -19,12 +19,4 @@
     <orderEntry type="jdk" jdkName="uv (ClubManager) (3)" jdkType="Python SDK" />
     <orderEntry type="sourceFolder" forTests="false" />
   </component>
-  <component name="TemplatesService">
-    <option name="TEMPLATE_CONFIGURATION" value="Django" />
-    <option name="TEMPLATE_FOLDERS">
-      <list>
-        <option value="$MODULE_DIR$/templates" />
-      </list>
-    </option>
-  </component>
 </module>