frontend: FunctionTabs en plusieurs components

website/contexts/FunctionTabsContext.js

@@ -0,0 +1,16 @@
+import React, { createContext, useState } from 'react';
+
+export const FunctionTabsContext = createContext();
+
+function FunctionTabsContextProvider(props) {
+
+    const [slideIndex, setSlideIndex] = useState(0);
+
+    return (
+        <FunctionTabsContext.Provider value={{ slideIndex, setSlideIndex }}>
+            {props.children}
+        </FunctionTabsContext.Provider>
+    );
+}
+
+export default FunctionTabsContextProvider;