Input refactoring (#12)

* Fix folder name typo

* Smaller fixes

* Shortcut rename to Shortcuts

* Fix quoted attributes in UE 5.3

* remove KeyboardShortcutAction

* Remove more trivial classes

* Rename IKeyboardShortcut

* Node delete shortcut

js/input/keyboard/KeyboardEnableZoom.js

@@ -0,0 +1,30 @@
+import KeyboardShortcut from "./KeyboardShortcut.js"
+import Shortcuts from "../../Shortcuts.js"
+import Zoom from "../mouse/Zoom.js"
+
+/** @typedef {import("../../Blueprint.js").default} Blueprint */
+
+export default class KeyboardEnableZoom extends KeyboardShortcut {
+
+    /** @type {Zoom} */
+    #zoomInputObject
+
+    /**
+     * @param {HTMLElement} target
+     * @param {Blueprint} blueprint
+     * @param {Object} options
+     */
+    constructor(target, blueprint, options = {}) {
+        options.activationKeys = Shortcuts.enableZoomIn
+        super(target, blueprint, options)
+    }
+
+    fire() {
+        this.#zoomInputObject = this.blueprint.template.getZoomInputObject()
+        this.#zoomInputObject.enableZoonIn = true
+    }
+
+    unfire() {
+        this.#zoomInputObject.enableZoonIn = false
+    }
+}