Replace string.replaceAll due to bad support

packages/builder/src/components/userInterface/MustacheStringViewer.svelte

@@ -0,0 +1,12 @@
+<script>
+  export let value
+  $:
+</script>
+
+<div>
+
+</div>
+
+<style>
+
+</style>

packages/builder/src/components/workflow/WorkflowBuilder/flowchart/FlowItem.svelte

@@ -26,9 +26,7 @@
   }
 
   $: inputs = enrichInputs(block.inputs)
-  $: tagline = block.tagline
+  $: tagline = block.tagline.replace(/{{/g, "<b>{{").replace(/}}/, "}}</b>")
-    .replaceAll("{{", "<b>{{")
-    .replaceAll("}}", "}}</b>")
 </script>
 
 <div