Converted put(api/announcement) to use useSend

Added useSendButtonCaption hook
Related to #19

front/src/hooks/useSend.ts

@@ -24,6 +24,7 @@ function useSend<R, T>(
     /** Don't use in useEffect. If you need request result, go with useFetch instead */
     const doSend = useCallback(async (urlProps?: Record<string, string>, params?: Omit<RequestInit, 'method'>) => {
         setLoading(true)
+        setError(null)
 
         if (abortControllerRef.current) {
             abortControllerRef.current.abort()