refactor: remove broken anon mode feature

- delete the anon mode hook/store and stop wiring publish flows through alternate signers
  - strip the settings UI, avatar warning, reply indicators, and FAQ text that referenced the toggle
  - drop the anon mode translation keys via scripts/update-translations.js

src/hooks/use-publish-post.ts

@@ -1,15 +1,12 @@
 import { useCallback } from 'react';
 import { Comment, useAccount, usePublishComment } from '@plebbit/plebbit-react-hooks';
-import useAnonMode from './use-anon-mode';
 import usePublishPostStore from '../stores/use-publish-post-store';
 
 const usePublishPost = ({ subplebbitAddress }: { subplebbitAddress?: string }) => {
   const account = useAccount();
-  const { anonMode } = useAnonMode();
 
-  const { author, signer, title, content, link, spoiler, publishCommentOptions } = usePublishPostStore((state) => ({
+  const { author, title, content, link, spoiler, publishCommentOptions } = usePublishPostStore((state) => ({
     author: state.author,
-    signer: state.signer,
     title: state.title || undefined,
     content: state.content || undefined,
     link: state.link || undefined,
@@ -29,21 +26,13 @@ const usePublishPost = ({ subplebbitAddress }: { subplebbitAddress?: string }) =
       spoiler,
     };
 
-    if (anonMode) {
-      baseOptions.author = {
-        address: signer?.address,
-        displayName: author?.displayName,
-      };
-      baseOptions.signer = signer;
-    } else {
-      baseOptions.author = {
-        ...account?.author,
-        displayName: author?.displayName || account?.author?.displayName,
-      };
-    }
+    baseOptions.author = {
+      ...account?.author,
+      displayName: author?.displayName || account?.author?.displayName,
+    };
 
     return baseOptions;
-  }, [anonMode, author, content, link, signer, spoiler, subplebbitAddress, title, account]);
+  }, [author, content, link, spoiler, subplebbitAddress, title, account]);
 
   const setPublishPostOptions = useCallback(
     (options: Partial<Comment>) => {