Matrix Improvements (#606)

* Support disable on matrix

* fix checkbox and radio icon

* Use Nuxt UI toggle

* Can set max_char_limit null

* fix action icon design

* Support for URL prefill for Matrix

* Apply theme color on toggle

* Set --form-color as style variable and use it

* Set default value for form-color

* fix formatting

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Co-authored-by: Julien Nahum <julien@nahum.net>

client/components/open/forms/components/FormUrlPrefill.vue

@@ -65,6 +65,8 @@ const preFillUrl = computed(() => {
         props.formData[property.id].forEach((value) => {
           uriComponents.append(property.id + "[]", value)
         })
+      } else if (typeof props.formData[property.id] === 'object') {
+        uriComponents.append(property.id, JSON.stringify(props.formData[property.id]))
       } else {
         uriComponents.append(property.id, props.formData[property.id])
       }