Input WYSIWYG: Added compontent and rough logic to book form

Just as a draft for prototyping and playing around to get things
started.

resources/js/wysiwyg/config.js

@@ -217,7 +217,7 @@ body {
  * @param {WysiwygConfigOptions} options
  * @return {Object}
  */
-export function build(options) {
+export function buildForEditor(options) {
     // Set language
     window.tinymce.addI18n(options.language, options.translationMap);
 
@@ -290,6 +290,54 @@ export function build(options) {
     };
 }
 
+/**
+ * @param {WysiwygConfigOptions} options
+ * @return {RawEditorOptions}
+ */
+export function buildForInput(options) {
+    // Set language
+    window.tinymce.addI18n(options.language, options.translationMap);
+
+    // BookStack Version
+    const version = document.querySelector('script[src*="/dist/app.js"]').getAttribute('src').split('?version=')[1];
+
+    // Return config object
+    return {
+        width: '100%',
+        height: '300px',
+        target: options.containerElement,
+        cache_suffix: `?version=${version}`,
+        content_css: [
+            window.baseUrl('/dist/styles.css'),
+        ],
+        branding: false,
+        skin: options.darkMode ? 'tinymce-5-dark' : 'tinymce-5',
+        body_class: 'page-content',
+        browser_spellcheck: true,
+        relative_urls: false,
+        language: options.language,
+        directionality: options.textDirection,
+        remove_script_host: false,
+        document_base_url: window.baseUrl('/'),
+        end_container_on_empty_block: true,
+        remove_trailing_brs: false,
+        statusbar: false,
+        menubar: false,
+        plugins: 'link autolink',
+        contextmenu: false,
+        toolbar: 'bold italic underline link',
+        content_style: getContentStyle(options),
+        color_map: colorMap,
+        init_instance_callback(editor) {
+            const head = editor.getDoc().querySelector('head');
+            head.innerHTML += fetchCustomHeadContent();
+        },
+        setup(editor) {
+            //
+        },
+    };
+}
+
 /**
  * @typedef {Object} WysiwygConfigOptions
  * @property {Element} containerElement