diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 25cbfad..afaafca 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,9 +5,8 @@
   </component>
   <component name="ChangeListManager">
     <list default="true" id="d24c4d50-575e-4f5d-9e13-04960cc44f85" name="Changes" comment="">
-      <change beforePath="$PROJECT_DIR$/.github/workflows/nextjs.yml" beforeDir="false" afterPath="$PROJECT_DIR$/.github/workflows/nextjs.yml" afterDir="false" />
+      <change afterPath="$PROJECT_DIR$/src/app/favicon.ico" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/public/favicon.ico" beforeDir="false" afterPath="$PROJECT_DIR$/public/favicon.ico" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -47,7 +46,7 @@
     "RunOnceActivity.ShowReadmeOnStart": "true",
     "SONARLINT_PRECOMMIT_ANALYSIS": "true",
     "WebServerToolWindowFactoryState": "false",
-    "last_opened_file_path": "C:/experiment/project/redoc-api",
+    "last_opened_file_path": "C:/experiment/project/mainzelliste.site/src/app",
     "node.js.detected.package.eslint": "true",
     "node.js.detected.package.tslint": "true",
     "node.js.selected.package.eslint": "(autodetect)",
@@ -76,7 +75,7 @@
       <workItem from="1727080153618" duration="2052000" />
       <workItem from="1727082295564" duration="721000" />
       <workItem from="1727247496720" duration="2250000" />
-      <workItem from="1727386379479" duration="9947000" />
+      <workItem from="1727386379479" duration="10835000" />
     </task>
     <task id="LOCAL-00001" summary="add: update next js template">
       <option name="closed" value="true" />
@@ -270,7 +269,23 @@
       <option name="project" value="LOCAL" />
       <updated>1727427205755</updated>
     </task>
-    <option name="localTasksCounter" value="25" />
+    <task id="LOCAL-00025" summary="change: change favicon size and add it to redoc page">
+      <option name="closed" value="true" />
+      <created>1727428970895</created>
+      <option name="number" value="00025" />
+      <option name="presentableId" value="LOCAL-00025" />
+      <option name="project" value="LOCAL" />
+      <updated>1727428970895</updated>
+    </task>
+    <task id="LOCAL-00026" summary="change: change favicon size and add it to redoc page">
+      <option name="closed" value="true" />
+      <created>1727429323401</created>
+      <option name="number" value="00026" />
+      <option name="presentableId" value="LOCAL-00026" />
+      <option name="project" value="LOCAL" />
+      <updated>1727429323401</updated>
+    </task>
+    <option name="localTasksCounter" value="27" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -298,6 +313,7 @@
     <MESSAGE value="ci: add a new job in next.js workflow to build a redoc api documentation page" />
     <MESSAGE value="add: api documentation to menu" />
     <MESSAGE value="change: disable theme toggler and change default theme to 'light'" />
-    <option name="LAST_COMMIT_MESSAGE" value="change: disable theme toggler and change default theme to 'light'" />
+    <MESSAGE value="change: change favicon size and add it to redoc page" />
+    <option name="LAST_COMMIT_MESSAGE" value="change: change favicon size and add it to redoc page" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/app/favicon.ico b/src/app/favicon.ico
new file mode 100644
index 0000000..b1bdae0
Binary files /dev/null and b/src/app/favicon.ico differ