Pop up a confirmation box when there is input. This prevents accidental closing
of the dialog boxes due to clicking outside.
This adds a development hook on modals in the form of a `beforeClose`
function. Modal windows can abort the close if the funtion returns false.
Additionally fixing a few issues with loop and state on the modal popups:
Escape key with bootbox is keyup.
Updating modal to close on keyup as well so escape key is working.
Fixes an issue where pressing esc will loop immediately back to the modal by:
keydown -> bootbox -> keyup -> acts as "cancel", restores modal
Needs a next call to reopenModal otherwise, keyup is handled again by the modal.
Fixes an issue where pressing esc will loop immediately back to the confirm:
esc keyup will be handled and bubble immediately back to the modal.
Additionally, only handle key events when the #discourse-modal is visible.
This resolves issues where escape or enter events were being handled by
a hidden modal window.
`suspend` isn't a User attribute, but was being assigned to the frontend User model as if it was. The model has a computed property that depends on `suspended_till`, so instead of overriding this property, it's better to return relevant attributes.
Fixes a computed-property.override deprecation (https://emberjs.com/deprecations/v3.x#toc_computed-property-override)
* renames `select-box-kit` into `select-kit`
* introduces `single-select` and `multi-select` as base components
* introduces {{search-advanced-category-chooser}} as a better component for selecting category in advanced search
* improves events handling in select-kit
* recreates color selection inputs using {{multi-select}} and a custom {{selected-color}} component
* replaces category-selector by a component using select-kit and based on multi-select
* improves positioning of wrapper
* removes the need for offscreen, and instead use `select-kit-header` as a base focus point for all select-kit based components
* introduces a formal plugin api for select-kit based components
* introduces a formal pattern for loading and updating select-kit based components:
```
computeValue()
computeContent()
mutateValue()
```
