fix: use correct TotalPaid key in user portal invoice/billing pages

Co-authored-by: lirantal <316371+lirantal@users.noreply.github.com>

Author: Copilot

app/users/bill-invoice-report.php

@@ -34,7 +34,7 @@
                     "id" => t('all','Invoice'),
                     "date" => t('all','Date'),
                     "totalbilled" => t('all','TotalBilled'),
-                    "totalpayed" => t('all','TotalPayed'),
+                    "totalpayed" => t('all','TotalPaid'),
                     t('all','Balance'),
                     "status_id" => t('all','Status')
                  );

app/users/bill-invoice-show.php

@@ -151,7 +151,7 @@
 
                 $input_descriptors0[] = array(
                                                 "name" => "totalpayed",
-                                                "caption" => t('all','TotalPayed'),
+                                                "caption" => t('all','TotalPaid'),
                                                 "type" => "number",
                                                 "value" => $totalpayed,
                                                 "min" => 0,

app/users/include/common/notificationsUserInvoice.php

@@ -115,7 +115,7 @@ function getInvoiceDetails($invoice_id = NULL, $username) {
 		"<b>".t('all','Invoice')."</b>: ".$invoice_id."<br/>".
 		"<b>".t('all','Date')."</b>: ".$invoiceDetails['date']."<br/>".
 		"<b>".t('all','TotalBilled')."</b>: ".$invoiceDetails['totalbilled']."<br/>".
-		"<b>".t('all','TotalPayed')."</b>: ".$invoiceDetails['totalpayed']."<br/>".
+		"<b>".t('all','TotalPaid')."</b>: ".$invoiceDetails['totalpayed']."<br/>".
 		"<b>".t('all','Balance')."</b>: ".$balance."<br/>".
 		"<b>".t('all','Status')."</b>: ".$invoiceDetails['status']."<br/>".
 		"<b>".t('ContactInfo','Notes')."</b>: ".$invoiceDetails['notes']."<br/><br/><br/>";