web/admin: Add InvalidationFlow to Radius Provider dialogues (#11786)

web: Add InvalidationFlow to Radius Provider dialogues

## What

- Bugfix: adds the InvalidationFlow to the Radius Provider dialogues
  - Repairs: `{"invalidation_flow":["This field is required."]}` message, which was *not* propagated
    to the Notification.
- Nitpick: Pretties `?foo=${true}` expressions: `s/\?([^=]+)=\$\{true\}/\1/`

## Note

Yes, I know I'm going to have to do more magic when we harmonize the forms, and no, I didn't add the
Property Mappings to the wizard, and yes, I know I'm going to have pain with the *new* version of
the wizard. But this is a serious bug; you can't make Radius servers with *either* of the current
dialogues at the moment.

web/src/admin/applications/wizard/methods/radius/ak-application-wizard-authentication-by-radius.ts

@@ -75,6 +75,26 @@ export class ApplicationWizardAuthenticationByRadius extends WithBrandConfig(Bas
                         ></ak-text-input>
                     </div>
                 </ak-form-group>
+                <ak-form-group>
+                    <span slot="header"> ${msg("Advanced flow settings")} </span>
+                    <div slot="body" class="pf-c-form">
+                        <ak-form-element-horizontal
+                            label=${msg("Invalidation flow")}
+                            name="invalidationFlow"
+                            required
+                        >
+                            <ak-flow-search
+                                flowType=${FlowsInstancesListDesignationEnum.Invalidation}
+                                .currentFlow=${provider?.invalidationFlow}
+                                defaultFlowSlug="default-provider-invalidation-flow"
+                                required
+                            ></ak-flow-search>
+                            <p class="pf-c-form__helper-text">
+                                ${msg("Flow used when logging out of this provider.")}
+                            </p>
+                        </ak-form-element-horizontal>
+                    </div></ak-form-group
+                >
             </form>`;
     }
 }