Adds a link under the colour swatches in the add/edit node modal that opens the
Custom Style editor with the node's type preselected, so a user can edit the
style for every node of that type without navigating Style -> Customize -> pick
type manually.
- CustomStyleModal: new optional `initialNodeType` prop; when set, the modal
opens straight into that node type's editor instead of the empty placeholder.
- NodeModal: new optional `onEditTypeStyle(type)` prop renders the shortcut link
(hidden for group/groupRect and when no handler is wired).
- App: `styleEditorType` state; both Add and Edit NodeModals forward the handler,
and a standalone CustomStyleModal instance opens preselected (stacked over the
node modal so in-progress node edits are preserved).
ha-relevant: yes
Pouzor
e8530ad3db