Revert "Fix: Always return hex key for get_public_key"

This reverts commit 87b929cfc6.

app/src/main/java/com/greenart7c3/nostrsigner/SignerProvider.kt

@@ -445,7 +445,7 @@ class SignerProvider : ContentProvider() {
                     }
 
                     val cursor = MatrixCursor(arrayOf("signature", "result"))
-                    val result = account.hexKey
+                    val result = if (sortOrder == null) account.npub else account.hexKey
                     cursor.addRow(arrayOf<Any>(result, result))
                     return cursor
                 }

app/src/main/java/com/greenart7c3/nostrsigner/ui/components/IntentSingleEventHomeScreen.kt

@@ -78,7 +78,11 @@ fun IntentSingleEventHomeScreen(
                 applicationName = applicationName,
                 permissions = intentData.permissions,
                 onAccept = { permissions, signPolicy, closeApplication, rememberType ->
-                    val result = account.hexKey
+                    val result = if (packageName == null) {
+                        account.hexKey
+                    } else {
+                        account.npub
+                    }
 
                     IntentUtils.sendResult(
                         context,