Force narrow style for action, condition and trigger in flows (#25619)

src/dialogs/config-flow/dialog-data-entry-flow.ts

@@ -349,6 +349,7 @@ class DataEntryFlowDialog extends LitElement {
                   ${this._step.type === "form"
                     ? html`
                         <step-flow-form
+                          narrow
                           .flowConfig=${this._params.flowConfig}
                           .step=${this._step}
                           .hass=${this.hass}