Fixed clear on import bug

ref #64

src/components/runners/ImportRunnerModal.svelte

@@ -20,6 +20,7 @@
   $: searchvalue = "";
   const dispatch = createEventDispatcher();
   function cancelModal() {
+    json_output = [];
     import_modal_open = false;
     dispatch("cancel");
   }
@@ -347,7 +348,6 @@
                 </button>
                 <button
                   on:click={() => {
-                    json_output = [];
                     cancelModal();
                   }}
                   type="button"