Adding Custom Formats to TinyMCE Causes Field Refresh and Input Unfocus Issues

Summary This feature request addresses an issue in Directus where custom formats in TinyMCE lead to unexpected behavior: the WYSIWYG editor reloads on every character input, causing the input field to lose focus. This creates a disruptive user experience for content editors, especially when entering lengthy or styled text. Basic Example Expected behavior: The editor should retain focus and apply styles without reloading. Actual behavior: The editor reloads on each keystroke, causing input to lose focus. Motivation This feature request aims to support use cases where custom formats are essential to create consistent and branded content within Directus. Users expect a smooth and uninterrupted experience when editing rich text fields, especially for dynamic and styled content. The current behavior affects usability and efficiency, particularly when formatting needs are integral to the content. Detailed Design To resolve this issue, TinyMCE’s custom format applica…