fix: Thousands action having null handler

We want to classify thousands delimiter as being an invalid key press

Author: Ryan Grey

src/finput.js

@@ -155,6 +155,7 @@ class Finput {
     const handlerForAction = {
       [ACTION_TYPES.NUMBER]: keyHandlers.onNumber,
       [ACTION_TYPES.DECIMAL]: keyHandlers.onDecimal,
+      [ACTION_TYPES.THOUSANDS]: keyHandlers.onThousands,
       [ACTION_TYPES.MINUS]: keyHandlers.onMinus,
       [ACTION_TYPES.SHORTCUT]: keyHandlers.onShortcut,
       [ACTION_TYPES.BACKSPACE]: keyHandlers.onBackspace,

src/keyHandlers.js

@@ -98,6 +98,16 @@ module.exports = {
     return newState;
   },
 
+  /**
+   * THOUSANDS HANDLER
+   * @param {currentState} Information about current finput state
+   */
+  onThousands: function (currentState, keyInfo, options) {
+    const newState = { ...currentState };
+    newState.valid = false;
+    return newState;
+  },
+
   /**
    * SHORTCUT HANDLER
    * @param {currentState} Information about current finput state