Add fullscreen toggle button

This pull request adds an oe-settings component which (currently) contains a fullscreen button.

The hope is to extend this component in the future to change settings about the verification grid.

I have not finished the tests yet, but the fullscreen component is complete, and I have outlined all the tests that I want to implement

Changes

Adds a fullscreen through an oe-verification-grid-settings component that allows the user to fullscreen the verification grid component
Adds a message to the help dialog that we recommend using the verification grid in fullscreen mode

Fixes a bug where verification grid shortcut keys would not work when sub-selection was disabled (e.g. for a single item grid)

Fixes bug in the VSCode workspace which caused inconsistent formatters to run
The oe-data-source now checks that the target of the for attribute is an oe-verification-grid
Toggling the oe-help-dialog now listens for a click event (which emits a PointerEvent event model). This adds support for toggling the help dialog through tab-stops and improves accessibility
Modifies the previously unused @queryParentElement decorator so that it can pierce shadow DOM
Stop prettier from scanning config files & build artifacts (improving performance, and reducing bugs)

A verification grid with the new fullscreen button. Note: The position is configurable and this is not the position in all verification grids

Fixes: #130

I am using sl-tooltip for the fullscreen buttons tooltip. This PR therefore adds sl-tooltip as a dependency