fix loading indicator and send invoice status error

app/Models/Invoice.php

@@ -460,14 +460,14 @@ class Invoice extends Model implements HasMedia
     {
         $data = $this->sendInvoiceData($data);
 
+        \Mail::to($data['to'])->send(new SendInvoiceMail($data));
+
         if ($this->status == Invoice::STATUS_DRAFT) {
             $this->status = Invoice::STATUS_SENT;
             $this->sent = true;
             $this->save();
         }
 
-        \Mail::to($data['to'])->send(new SendInvoiceMail($data));
-
         return [
             'success' => true,
             'type' => 'send',

app/Models/RecurringInvoice.php

@@ -369,6 +369,7 @@ class RecurringInvoice extends Model
                 'customer' => $invoice->customer->toArray(),
                 'company' => Company::find($invoice->company_id)
             ];
+
             $invoice->send($data);
         }
     }