chore: code format

lnbits/extensions/watchonly/static/js/index.js

@@ -519,6 +519,7 @@ new Vue({
       navigator.serial.addEventListener('disconnect', event => {
         console.log('### navigator.serial event: disconnected!', event)
       })
+      try {
         // const ports = await navigator.serial.getPorts();
         const port = await navigator.serial.requestPort()
         console.log('### port', port)
@@ -528,8 +529,9 @@ new Vue({
 
         const writer = port.writable.getWriter()
 
-      const psbtByteArray = Uint8Array.from(atob(this.payment.psbtBase64), c =>
-        c.charCodeAt(0)
+        const psbtByteArray = Uint8Array.from(
+          atob(this.payment.psbtBase64),
+          c => c.charCodeAt(0)
         )
         await writer.write(psbtByteArray)
 
@@ -538,6 +540,15 @@ new Vue({
 
         await port.close()
         console.log('### sharePsbtOnSerialPort done')
+      } catch (error) {
+        console.log('### error', error)
+        this.$q.notify({
+          type: 'warning',
+          message: 'Serial port communication failed!',
+          caption: `${error}`,
+          timeout: 10000
+        })
+      }
     },
     sharePsbtWithAnimatedQRCode: async function () {
       console.log('### sharePsbtWithAnimatedQRCode')