feat: remove unused success popups and implement a unified SuccessModal component

app/contexts/news.tsx

@@ -14,6 +14,8 @@ type NewsContextProperties = {
   setIsRegisterOpen: Dispatch<SetStateAction<boolean>>
   isForgetOpen: boolean
   setForgetOpen: Dispatch<SetStateAction<boolean>>
+  isSuccessOpen: boolean
+  setIsSuccessOpen: Dispatch<SetStateAction<boolean>>
 }
 
 const NewsContext = createContext<NewsContextProperties | undefined>(undefined)
@@ -22,6 +24,7 @@ export const NewsProvider = ({ children }: PropsWithChildren) => {
   const [isLoginOpen, setIsLoginOpen] = useState(false)
   const [isRegisterOpen, setIsRegisterOpen] = useState(false)
   const [isForgetOpen, setForgetOpen] = useState(false)
+  const [isSuccessOpen, setIsSuccessOpen] = useState(true)
 
   return (
     <NewsContext.Provider
@@ -32,6 +35,8 @@ export const NewsProvider = ({ children }: PropsWithChildren) => {
         setIsRegisterOpen,
         isForgetOpen,
         setForgetOpen,
+        isSuccessOpen,
+        setIsSuccessOpen,
       }}
     >
       {children}