Adding types for disableCaretPositioning option

src/lib/@types/index.d.ts

@@ -101,6 +101,11 @@ declare module 'simple-keyboard' {
      */
     useButtonTag?: boolean;
 
+    /**
+     * A prop to ensure characters are always be added/removed at the end of the string.
+     */
+    disableCaretPositioning?: boolean;
+
     /**
      * Executes the callback function on key press. Returns button layout name (i.e.: "{shift}").
      */

src/lib/components/Keyboard.js

@@ -59,6 +59,7 @@ class SimpleKeyboard {
      * @property {function} onInit Executes the callback function once simple-keyboard is rendered for the first time (on initialization).
      * @property {function(inputs: object):object} onChangeAll Executes the callback function on input change. Returns the input object with all defined inputs.
      * @property {boolean} useButtonTag Render buttons as a button element instead of a div element.
+     * @property {boolean} disableCaretPositioning A prop to ensure characters are always be added/removed at the end of the string.
      */
     this.options = options;
     this.options.layoutName = this.options.layoutName || "default";