refactor(frontend): export DEFAULT_FALLBACK_URL

Signed-off-by: Philip Molares <philip.molares@udo.edu>

frontend/src/components/editor-page/editor-pane/hooks/yjs/use-on-note-deleted.ts

@@ -10,6 +10,7 @@ import { MessageType } from '@hedgedoc/commons'
 import type { Listener } from 'eventemitter2'
 import { useRouter } from 'next/navigation'
 import { useCallback, useEffect } from 'react'
+import { DEFAULT_FALLBACK_URL } from '../../../../login-page/utils/use-get-post-login-redirect-url'
 
 /**
  * Hook that redirects the user to the history page and displays a notification when the note is deleted.
@@ -27,7 +28,7 @@ export const useOnNoteDeleted = (websocketConnection: MessageTransporter): void
         noteTitle
       }
     })
-    router.push('/explore/my')
+    router.push(DEFAULT_FALLBACK_URL)
   }, [router, noteTitle, dispatchUiNotification])
 
   useEffect(() => {

frontend/src/components/login-page/utils/use-get-post-login-redirect-url.ts

@@ -5,13 +5,13 @@
  */
 import { useSingleStringUrlParameter } from '../../../hooks/common/use-single-string-url-parameter'
 
-const defaultFallback = '/explore/my'
+export const DEFAULT_FALLBACK_URL = '/explore/my'
 
 /**
  * Returns the URL that the user should be redirected to after logging in.
  * If no parameter has been provided or if the URL is not relative, then "/explore/my" will be used.
  */
 export const useGetPostLoginRedirectUrl = (): string => {
-  const redirectBackUrl = useSingleStringUrlParameter('redirectBackTo', defaultFallback)
-  return redirectBackUrl.startsWith('/') && !redirectBackUrl.startsWith('//') ? redirectBackUrl : defaultFallback
+  const redirectBackUrl = useSingleStringUrlParameter('redirectBackTo', DEFAULT_FALLBACK_URL)
+  return redirectBackUrl.startsWith('/') && !redirectBackUrl.startsWith('//') ? redirectBackUrl : DEFAULT_FALLBACK_URL
 }