feat: reuse existing bunker connection on account switch (#401)

src/providers/NostrProvider/bunker.signer.ts

@@ -12,7 +12,7 @@ export class BunkerSigner implements ISigner {
     this.clientSecretKey = clientSecretKey ? hexToBytes(clientSecretKey) : generateSecretKey()
   }
 
-  async login(bunker: string): Promise<string> {
+  async login(bunker: string, isInitialConnection = true): Promise<string> {
     const bunkerPointer = await parseBunkerInput(bunker)
     if (!bunkerPointer) {
       throw new Error('Invalid bunker')
@@ -23,7 +23,9 @@ export class BunkerSigner implements ISigner {
         window.open(url, '_blank')
       }
     })
-    await this.signer.connect()
+    if (isInitialConnection) {
+      await this.signer.connect()
+    }
     return await this.signer.getPublicKey()
   }