Fix Translation detection breaks when there are blank lines in a JSON file

Fixes N1ebieski#42

Author: N1ebieski

php-templates/translations.php

@@ -133,7 +133,7 @@ protected function linesFromJsonFile($file)
             array_keys($json),
         );
         $result = [];
-        $searchRange = 2;
+        $searchRange = 3;
 
         foreach ($encoded as $index => $keys) {
             // Pretty likely to be on the line that is the index, go happy path first

src/templates/translations.ts

@@ -133,7 +133,7 @@ $translator = new class
             array_keys($json),
         );
         $result = [];
-        $searchRange = 2;
+        $searchRange = 3;
 
         foreach ($encoded as $index => $keys) {
             // Pretty likely to be on the line that is the index, go happy path first