Fix removing content from trix editor (#114)

| Q               | A
| --------------- | -----
| Bug fix?        | yes
| New feature?    | no
| BC breaks?      | no
| Deprecations?   | no
| Related tickets | partially #104 
| License         | MIT

Author: GSadee

assets/admin/js/trix/trix-editor.js

@@ -39,30 +39,6 @@ const bodyObserver = new MutationObserver((mutationsList) => {
 
 bodyObserver.observe(document.body, { childList: true, subtree: true });
 
-document.querySelectorAll('select').forEach(select => {
-    select.addEventListener('change', (event) => {
-        document.querySelectorAll('trix-editor').forEach((editor) => {
-            const innerInput = document.getElementById(editor.attributes.input.value);
-
-            editor.innerHTML = innerInput.value;
-        });
-
-        updateToolbars();
-    });
-});
-
-document.querySelectorAll('button[data-live-action-param]').forEach(button => {
-    button.addEventListener('click', (event) => {
-        document.querySelectorAll('trix-editor').forEach((editor) => {
-            const innerInput = document.getElementById(editor.attributes.input.value);
-
-            editor.innerHTML = innerInput.value;
-        });
-
-        updateToolbars();
-    });
-});
-
 document.addEventListener('trix-blur', (event) => {
     const innerInput = document.getElementById(event.target.attributes.input.value);
 
@@ -72,10 +48,20 @@ document.addEventListener('trix-blur', (event) => {
     }
 });
 
-document.addEventListener("trix-file-accept", (event) => {
+document.addEventListener('trix-file-accept', (event) => {
     event.preventDefault();
 });
 
+document.addEventListener('DOMContentLoaded', () => {
+    document.querySelectorAll('trix-editor').forEach((editor) => {
+        const innerInput = document.getElementById(editor.attributes.input.value);
+
+        if (innerInput) {
+            editor.innerHTML = innerInput.value;
+        }
+    });
+});
+
 function updateToolbars() {
     const toolbars = document.querySelectorAll('trix-toolbar');
     const html = removeToolbarFileTools(Trix.config.toolbar.getDefaultHTML());