monaco_editor: remove buggy autoIndent: true

true is not an allowed value, causing a visible problem tabSize to be
ignored on empty documents and using 4 for python.

bt5/erp5_monaco_editor/SkinTemplateItem/portal_skins/erp5_monaco_editor/monaco-editor.gadget.js.js

@@ -29,7 +29,6 @@
       context.editor = editor = monaco.editor.create(
         this.element.querySelector('.monaco-container'),
         {
-          autoIndent: true,
           automaticLayout: window.ResizeObserver ? true : false,
           stickyScroll: {
             enabled: true,

bt5/erp5_monaco_editor/SkinTemplateItem/portal_skins/erp5_monaco_editor/monaco_editor_support.zpt

@@ -122,7 +122,6 @@ $script.onload = function() {
     {
       value: $textarea.value,
       language: mode,
-      autoIndent: true,
       experimental: {
         stickyScroll: {
           enabled: true,