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/template/ITemplate.js

@@ -31,14 +31,6 @@ export default class ITemplate {
         return /** @type {IInput[]} */([])
     }
 
-    /**
-     * @template {IInput} T
-     * @param {new (...any) => T} type
-     */
-    getInputObject(type) {
-        return /** @type {T} */(this.inputObjects.find(object => object.constructor == type))
-    }
-
     setup() {
         this.#inputObjects.forEach(v => v.setup())
     }