This means that decorateCooked can be used to modify HTML without triggering the download of remote resources (e.g. images)
In some rare cases (e.g. IntersectionObservers in Chromium), decorating needs to happen in the real DOM. For this, pass `afterAdopt: true` to `decorateCooked`
Refactor plugin-api `addKeyboardShortcut` to point to `KeyboardShortcuts`.
* Do not add shortcuts to the default object directly.
* Create an addShortcut function in keyboard-shortcuts to add shortcuts safely and call to bindKey to be able to use opts.
* Refactor controllers/bookmark.js to use new addShortcut func and emove unnecessary addBindings.
* No longer export keyboard shortcut bindings, rename to DEFAULT_BINDINGS and remove export, these do not need to be accessed by anything else.
