* - Show "Add" button in the toolbar when a display layout object is selected.
- Add a flag to object view's show() method to indicate immediate selection of the view. If the view implements getSelectionContext() use it, otherwise set to default context.
* Create a component for each element.
* Saving work
* Add element factory for creating new instances of elements.
* Mutate element when a new one added and get elements when the component is mounted.
* Add create() method for creating a new telemetry and element in their respective view configuration.
* Add some of the toolbar controls for box, text, image and line elements. Also, add X, Y, Width and Height controls for alhpanumeric elements.
* Pass name to addElement as type.
* Add c-frame-inspectable class if item is inspectable.
* Clean up
* Hide frame for summary widgets by default.
* Better styling for editing
- s-selected on shell__main-container;
- Better edit grid coloring for espresso;
* - Update toolbar-button to support dialogs.
- Update toolbar to construct a value object based on form keys if a toolbar item has a dialogi, and mutate the form keys.
- Add toolbar controls for editing text and url for 'Text' and 'Image' elements respectively.
* Editing-related changes
- Removed hard-coded .is-selectable and .is-moveable from
LayoutItem.vue, updates accordingly to _global.scss;
- Theme constants updated;
- TODO: apply changes to Flexible Layouts;
* Better defaults
- Better default grid size and object size;
* - Fix toolbar-input to read value as a number if type is 'number'.
- Remove rawPosition from view configuration and instead get the position and dimensions from the properties (x, y, width and height) directly.
- Set the style property on the view configuration instead of the layout item.
- Move the logic for updating the style to the view configuration.
* Fix default dimensions for telemetry items and subobjects since the default grid size is changed.
* Remove form definition for display layout type.
* Reword the comment
* Let subobject view configuration handle new panel creation.
* Add default grid size back and remove unused code.
* Pass in only the needed method.
* Define default position in case the object is not added via drag 'n drop.
