ui: seed default-on toggles in zone wizard while hidden

StaticInputsForm.fillValue() only seeded defaults for currently-displayed
fields, so a display-gated switch with checked:true bound to an undefined
value and rendered as off once revealed. Seed checked switch/checkbox
fields even while hidden, so the Linstor 'Allow self-signed certificate'
toggle defaults on in the zone creation wizard.

Author: rp-

ui/src/views/infra/zone/StaticInputsForm.vue

@@ -187,6 +187,11 @@ export default {
         this.setRules(field)
         const fieldExists = this.isDisplayInput(field)
         if (!fieldExists) {
+          // A display-gated toggle that defaults on (checked: true) must be seeded while still
+          // hidden, otherwise it binds to an undefined value and shows off once it becomes visible.
+          if ((field.switch || field.checkbox) && field.checked) {
+            this.form[field.key] = true
+          }
           return
         }
         if (field.key === 'agentUserName' && !this.getPrefilled(field)) {