no issue
- when copying the template parts out of `<GhSitePreview>` the template was left pointing to passed in arguments rather than pulling the data from the settings service
closes https://github.com/TryGhost/Team/issues/1103
Custom post settings can be grouped by homepage or post, when set to `'post'` it makes sense to be able to preview a post page rather than the homepage.
- added preview type selection to `themeManagement` service
- `.availablePreviewTypes` is useful for populating selects or other page selection elements
- `.previewType` is set to the currently selected preview type name
- `.setPreviewType()` is for setting the preview type and re-generating the preview html if necessary
- updated `themeManagement.updatePreviewHtmlTask` to fetch the latest published post if we don't already have a published post reference in the store, that post's `url` is then used when fetching the preview html if the preview type is set to `'post'`
- added a select element to the design index header that uses the themeManagement properties/actions to list types and update the preview on change
- updated the design nav menu to switch preview types when different sections are opened so the preview automatically switches to the post preview when making changes to the "post" custom theme settings group
no issue
- ensured that we're only swapping classes on existing elements or inserting/removing elements around the iframe to avoid re-rendering and the associated loading+layout flash
no issue
- by using flex display on the outer container we can get rid of the hardcoded height calc style and let the browser handle the layout more naturally
refs https://github.com/TryGhost/Team/issues/1130
- when moving the design settings screen from a modal to normal routes the save process was misplaced and the template not updated
- moved all the design settings behaviour over to the index controller where it belongs and updated the template to use `this.saveTask` rather than `@data.saveTask` as was used in the modal
refs https://github.com/TryGhost/Team/issues/1130
- added `ui.contextualNavMenu` property that when set will switch the main nav menu between components, if it's not set then it will show the default "main" menu component
- added `design` menu sub-component of `gh-nav-menu` ready for use via `contextualNavMenu`
- moved sidebar contents from the design modal into this component
- updated design route to set/reset `ui.contextualNavMenu` to `design` on entering/leaving the route
- all other design routes are sub-routes so this works across all other design screens
- moved base design modal preview into the `settings/design/index` controller/template
- using index means that it's the default screen for `/settings/design` but will be automatically replaced by any other `design.x` routes
- moved `design/advanced` modal content into the `settings.design.advanced` controller/template and removed the modal handling from the route
