Fix CKEditor error on Uncaught TypeError: Cannot read property 'split_text' of undefined

Problem/Motivation

After updating to the release Paragraphs Features 8.x-1.10
https://www.drupal.org/project/paragraphs_features/releases/8.x-1.10
Bug #3157216: JS very theme specific

Steps to reproduce

Given that the paragraphs_features module was updated to 8.x-1.10 by the composer
When we try to edit any content or block content with a text format which are using the CKEditor
Then the CKEditor will not load mostly when we Edit the content
And the console log will have

Uncaught TypeError: Cannot read property 'split_text' of undefined
    at isValidParagraphsField (plugin.js?t=qgn2hv:225)
    at Object.init (plugin.js?t=qgn2hv:243)
    at Object.<anonymous> (ckeditor.js?v=4.14.1:272)
    at d (ckeditor.js?v=4.14.1:252)
    at Array.n (ckeditor.js?v=4.14.1:253)
    at y (ckeditor.js?v=4.14.1:253)
    at ckeditor.js?v=4.14.1:254

Proposed resolution

Change the logic in

    // Paragraphs split text should work only on widgets where that option is enabled.
    var paragraphWrapperId = $subForm.closest('.paragraphs-tabs-wrapper').attr('id');
    if (typeof drupalSettings.paragraphs_features.split_text === 'undefined' || !drupalSettings.paragraphs_features.split_text[paragraphWrapperId]) {
      return false;
    }

To

    if (typeof drupalSettings.paragraphs_features !== 'undefined') {
      if (typeof drupalSettings.paragraphs_features.split_text === 'undefined') {
        return false;      
      }
      else {
        // Paragraphs split text should work only on widgets where that option is enabled.
        var paragraphWrapperId = $subForm.closest('.paragraphs-tabs-wrapper').attr('id');
        if (!drupalSettings.paragraphs_features.split_text[paragraphWrapperId]) {
          return false;
        }
      }
    }
    else {
      return false;
    }

Remaining tasks

Release

User interface changes

not to load with CKEditor without being configured in the text format
A filter or a button should be configured first. then the split text should be allowed to split by button or by filter
But not auto for all text formats which are using CKEditor.

Test Create Basic page

Test Add Basic block

API changes

N/A

Data model changes

N/A