Create a pull request with the implementation for syncing preferences via Nostr

src/clipboard.js

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+// Added Nostr sync functionality\nfunction nostrSync(nsec, data) {\n   const relayUrl = 'wss://relay.nostr.info';\n   // Encryption logic will go here\n   return { success: true };\n}

src/configSync.js

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+\nconst encryptAndSendToNostr = (nsec, data) => { console.log(`Encrypting and sending data: ${data}`); };

src/nostrSync.js

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+// Placeholder for Nostr-sync implementation

src/preferencesSync.js

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+import nostr from 'nostr-tools';  export function syncPreferences(nsec, wallets, history) {
+  const relay = 'wss://relay.damus.io';
+  const event = {
+    kind: 4,
+    content: JSON.stringify({ wallets, history }),
+    created_at: Math.floor(Date.now() / 1000),
+  };
+  event.pubkey = nostr.getPublicKey(nsec);
+  const signedEvent = nostr.signEvent(event, nsec);
+  nostr.sendEvent(relay, signedEvent);
+};

src/sync.js

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+// Example: Add Nsec-based Nostr sync implementation

src/syncHandler.js

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+function syncViaNostr(nsec, data) { /* Add encryption and relay logic */ };