Fix systematic errors in pagination, sucursal warnings, and fatal count() errors across multiple modules

modules/user.php

@@ -1,17 +1,25 @@
 <?php
-
-	if($_SESSION['tipoUsr'] == 'Cliente'){
+ 
+	$tipoUsr = $_SESSION['tipoUsr'] ?? '';
+	
+	if($tipoUsr == 'Cliente'){
 				
 		$Usr['type'] = 'cliente';
 		
 	}else{
 	
 		$Usr = $user->Info();
+		if(!is_array($Usr)) {
+			$Usr = array();
+			$Usr['type'] = '';
+			$Usr['nombre'] = 'Visitante';
+			$Usr['sucursal'] = '';
+		}
 		
-		if( $Usr['type'] == 'gerente' || 
+		if( isset($Usr['type']) && ($Usr['type'] == 'gerente' || 
 			$Usr['type'] == 'facturacion' || 
 			$Usr['type'] == 'vendedor' || 
-			$Usr['type'] == 'cajero'
+			$Usr['type'] == 'cajero')
 		){
 			$sucursal->setSucursalId($_SESSION['idSuc']);
 			$Usr['sucursal'] = utf8_decode(urldecode($sucursal->GetNameById()));