Fix potential issue with json_encode() in templates

app/Template/budget/index.php

@@ -6,8 +6,8 @@
 <div id="budget-chart">
     <div id="chart"
          data-date-format="<?= e('%%Y-%%m-%%d') ?>"
-         data-metrics='<?= json_encode($daily_budget) ?>'
-         data-labels='<?= json_encode(array('in' => t('Budget line'), 'out' => t('Expenses'), 'left' => t('Remaining'), 'value' => t('Amount'), 'date' => t('Date'), 'type' => t('Type'))) ?>'></div>
+         data-metrics='<?= json_encode($daily_budget, JSON_HEX_APOS) ?>'
+         data-labels='<?= json_encode(array('in' => t('Budget line'), 'out' => t('Expenses'), 'left' => t('Remaining'), 'value' => t('Amount'), 'date' => t('Date'), 'type' => t('Type')), JSON_HEX_APOS) ?>'></div>
 </div>
 <hr/>
 <table class="table-fixed table-stripped">