Expose whole form value as a data binding

packages/client/manifest.json

@@ -1837,6 +1837,10 @@
       {
         "type": "static",
         "values":  [
+          {
+            "label": "Value",
+            "key": "__value"
+          },
           {
             "label": "Valid",
             "key": "__valid"

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

@@ -59,6 +59,7 @@
     ...formValue,
 
     // These static values are prefixed to avoid clashes with actual columns
+    __value: formValue,
     __valid: valid,
     __currentStep: $currentStep,
     __currentStepValid: $currentStepValid,