added WeekSelector

anwendung/src/components/WeekSelector.jsx

@@ -0,0 +1,20 @@
+import Button from "@/components/Button";
+import DateElement from "@/components/DateElement";
+import { arrowLeft } from "./Icons"
+import { arrowRight } from "./Icons"
+import { useState } from 'react'
+
+
+
+export default function WeekSelector(){
+    const [weeks, setWeeks] = useState(0)
+    return (
+        <>
+            <div className="weekSelector">
+                <Button icon={arrowLeft} onClick={() => setWeeks(weeks-1)} />
+                <DateElement week={weeks}/>
+                <Button icon={arrowRight} onClick={() => setWeeks(weeks+1)}/>
+            </div>
+        </>
+    )
+}