Split collection editor into dedicated routes (#37731)

app/javascript/mastodon/components/form_fields/index.ts

@@ -1,6 +1,8 @@
 export { FormStack } from './form_stack';
+export { Fieldset } from './fieldset';
 export { TextInputField, TextInput } from './text_input_field';
 export { TextAreaField, TextArea } from './text_area_field';
 export { CheckboxField, Checkbox } from './checkbox_field';
+export { RadioButtonField, RadioButton } from './radio_button_field';
 export { ToggleField, Toggle } from './toggle_field';
 export { SelectField, Select } from './select_field';