Adding onchange actions to code scanner. (#12029)

* Adding onchange actions to code scanner.
* Removed unused code, set updateOnChange to false.

---------

Co-authored-by: Michael Drury <me@michaeldrury.co.uk>

packages/client/manifest.json

@@ -3419,6 +3419,17 @@
           "value": "custom"
         }
       },
+      {
+        "type": "event",
+        "label": "On change",
+        "key": "onChange",
+        "context": [
+          {
+            "label": "Field Value",
+            "key": "value"
+          }
+        ]
+      },
       {
         "type": "validation/string",
         "label": "Validation",

packages/client/src/components/app/forms/CodeScanner.svelte

@@ -128,6 +128,7 @@
     <div class="manual-input">
       <Input
         bind:value
+        updateOnChange={false}
         on:change={() => {
           dispatch("change", value)
         }}