refactor: add 'stores' folder and move challenges store

src/hooks/use-challenges.ts

@@ -1,24 +0,0 @@
-import { create } from 'zustand';
-import { Challenge } from '@plebbit/plebbit-react-hooks';
-
-interface State {
-  challenges: Challenge[];
-  addChallenge: (challenge: Challenge) => void;
-  removeChallenge: () => void;
-}
-
-const useChallengesStore = create<State>((set) => ({
-  challenges: [],
-  addChallenge: (challenge: Challenge) => {
-    set((state) => ({ challenges: [...state.challenges, challenge] }));
-  },
-  removeChallenge: () => {
-    set((state) => {
-      const challenges = [...state.challenges];
-      challenges.shift();
-      return { challenges };
-    });
-  },
-}));
-
-export default useChallengesStore;

src/hooks/use-reply.ts

@@ -1,8 +1,8 @@
 import { useMemo } from 'react';
 import { ChallengeVerification, Comment, PublishCommentOptions, usePublishComment } from '@plebbit/plebbit-react-hooks';
 import { create } from 'zustand';
-import useChallengesStore from './use-challenges';
 import { alertChallengeVerificationFailed } from '../lib/utils/challenge-utils';
+import useChallengesStore from '../stores/use-challenges-store';
 
 type SetReplyStoreData = {
   subplebbitAddress: string;