Add blobs to "img-src" for Helia CSP (#2974)

nextjs/csp/policies/helia.ts

@@ -2,6 +2,8 @@ import type CspDev from 'csp-dev';
 
 import config from 'configs/app';
 
+import { KEY_WORDS } from '../utils';
+
 export function helia(): CspDev.DirectiveDescriptor {
   if (!config.UI.views.nft.verifiedFetch.isEnabled) {
     return {};
@@ -12,5 +14,8 @@ export function helia(): CspDev.DirectiveDescriptor {
       'https://delegated-ipfs.dev',
       'https://trustless-gateway.link',
     ],
+    'img-src': [
+      KEY_WORDS.BLOB,
+    ],
   };
 }