support nip94 and fix some bugs

src/libs/openGraph.tsx

@@ -1,4 +1,4 @@
-import { FetchOptions, ResponseType, fetch } from '@tauri-apps/plugin-http';
+import { fetch } from '@tauri-apps/plugin-http';
 import * as cheerio from 'cheerio';
 
 import { OPENGRAPH } from '@stores/constants';
@@ -332,10 +332,9 @@ function parseResponse(response: IPreFetchedResource, options?: ILinkPreviewOpti
 
 export async function getLinkPreview(text: string) {
   const fetchUrl = text;
-  const options: FetchOptions = {
+  const options = {
     method: 'GET',
     timeout: 5,
-    responseType: ResponseType.Text,
   };
 
   let response = await fetch(fetchUrl, options);

src/libs/storage.tsx

@@ -529,10 +529,15 @@ export async function getRelays() {
 export async function getExplicitRelayUrls() {
   const db = await connect();
   const activeAccount = await getActiveAccount();
+
+  if (!activeAccount) return null;
+
   const result: Relays[] = await db.select(
     `SELECT * FROM relays WHERE account_id = "${activeAccount.id}";`
   );
+
   if (result.length > 0) return result.map((el) => el.relay);
+
   return null;
 }
 
@@ -541,7 +546,7 @@ export async function createRelay(relay: string, purpose?: string) {
   const db = await connect();
   const activeAccount = await getActiveAccount();
   return await db.execute(
-    'INSERT OR IGNORE INTO blocks (account_id, relay, purpose) VALUES (?, ?, ?);',
+    'INSERT OR IGNORE INTO relays (account_id, relay, purpose) VALUES (?, ?, ?);',
     [activeAccount.id, relay, purpose || '']
   );
 }