fix: Sync package-lock.json and fix tests for nostr-tools v2

- Synced `package-lock.json` with `package.json` to resolve `npm ci` failures.
- Updated `nostr-tools` dependencies to resolve conflicts.
- Fixed `SyntaxError` in `tests/nostr-login-permissions.test.mjs` caused by duplicate code.
- Updated `js/nostr/client.js`, `js/nostr/publishHelpers.js`, `js/nostr/adapters/nsecAdapter.js`, `js/nostr/nip46Client.js` to use `hexToBytes` helper when calling `nostr-tools` functions, as v2+ expects `Uint8Array` instead of hex strings.
- Added `hexToBytes` helper in `js/utils/hex.js`.
- Updated tests (`tests/nostr/dm-direct-message-flow.test.mjs`, `tests/nostr-send-direct-message.test.mjs`, `tests/nostr-private-key-signer.test.mjs`, `tests/nostr/nip46Client.test.js`) to use `Uint8Array` for keys where required.

Co-authored-by: PR0M3TH3AN <[email protected]>

js/utils/hex.js

@@ -9,3 +9,21 @@ export function normalizeHexString(value) {
 
 export const normalizeHexId = normalizeHexString;
 export const normalizeHexPubkey = normalizeHexString;
+
+export function hexToBytes(hex) {
+  if (typeof hex !== "string") {
+    throw new TypeError("hexToBytes: expected string, got " + typeof hex);
+  }
+  const normalized = hex.trim();
+  if (normalized.length % 2) throw new Error("hex string must have even length");
+  const array = new Uint8Array(normalized.length / 2);
+  for (let i = 0; i < array.length; i++) {
+    const j = i * 2;
+    const byte = parseInt(normalized.substring(j, j + 2), 16);
+    if (Number.isNaN(byte) || byte < 0) {
+      throw new Error("Invalid hex string");
+    }
+    array[i] = byte;
+  }
+  return array;
+}