refactor: remove electron-related code

src/providers/NostrProvider/nip-07.signer.ts

@@ -0,0 +1,26 @@
+import { ISigner, TDraftEvent, TNip07 } from '@/types'
+
+export class Nip07Signer implements ISigner {
+  private signer: TNip07
+  private pubkey: string | null = null
+
+  constructor() {
+    if (!window.nostr) {
+      throw new Error(
+        'You need to install a nostr signer extension to login. Such as alby, nostr-keyx or nos2x.'
+      )
+    }
+    this.signer = window.nostr
+  }
+
+  async getPublicKey() {
+    if (!this.pubkey) {
+      this.pubkey = await this.signer.getPublicKey()
+    }
+    return this.pubkey
+  }
+
+  async signEvent(draftEvent: TDraftEvent) {
+    return await this.signer.signEvent(draftEvent)
+  }
+}