feat: allow HTML <br /> tag in data table in Plugin option page

admin/class-recursivetable.php

@@ -202,7 +202,7 @@ private static function array_to_html_table_recursive( array $arr ): string {
 						return $str;
 					}
 					$value = $val;
-					$str  .= '<span>' . htmlspecialchars( $value ) . '</span>';
+					$str  .= '<span>' . nl2br( htmlspecialchars( $value ) ) . '</span>';
 				}
 				$str .= '</td></tr>';
 			}