[FIX] web_editor: fix _getEditorOptions traceback

Before this commit, a traceback would be thrown when no options were
passed to `_getEditorOptions` because of a code mistake using the
variable `options` rather than `finalOptions`.

Also, this error revealed that the `this.options` of the wysiwyg could
be wrongly reset if no argument `options` was passed to `resetEditor`.

task-3149085

closes odoo/odoo#111100

X-original-commit: 475775d3dfc230c06c7a2b127b67bc22543e8a27
Signed-off-by: Antoine Guenet (age) <age@odoo.com>

addons/web_editor/static/src/js/wysiwyg/wysiwyg.js

@@ -2013,7 +2013,7 @@ const Wysiwyg = Widget.extend({
         // autohideToolbar is true by default (false by default if navbar present).
         finalOptions.autohideToolbar = typeof finalOptions.autohideToolbar === 'boolean'
             ? finalOptions.autohideToolbar
-            : !options.snippets;
+            : !finalOptions.snippets;
 
         return finalOptions;
     },
@@ -2535,8 +2535,10 @@ const Wysiwyg = Widget.extend({
         this._collaborationStopBus && this._collaborationStopBus();
     },
     resetEditor: function (value, options) {
-        this.options = this._getEditorOptions(options);
-        const {collaborationChannel} = options;
+        if (options) {
+            this.options = this._getEditorOptions(options);
+        }
+        const {collaborationChannel} = this.options;
         this._stopPeerToPeer();
         // If there is no collaborationResId, the record has been deleted.
         if (!collaborationChannel || !collaborationChannel.collaborationResId) {