Uniformize folder structure (#693)

* Uniformize folder structure

* Fix icons

* Fix icons

* Fix tests

* Fix tests

front/src/hooks/useUpdateEffect.ts

@@ -0,0 +1,14 @@
+import { DependencyList, EffectCallback, useEffect } from 'react';
+
+import { useFirstMountState } from './useFirstMountState';
+
+export function useUpdateEffect(effect: EffectCallback, deps?: DependencyList) {
+  const isFirst = useFirstMountState();
+
+  useEffect(() => {
+    if (!isFirst) {
+      return effect();
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, deps);
+}