Explanatory Text TinyMCE toolbar is small and doesn't always work

[ebruchez]

This happens especially if the Explanatory Text is narrow and on the right.

[ebruchez]

With the narrow menu:

• clicking on "B" or "I" works as expected
• clicking on the "..." menu opens the rest of the toolbar below as a menu, as shown above
• however operations in the menu don't work

It seems that clicking on "..." causes the editor to terminate the edition, as if the user had clicked outside of the editor.

The regular Formatted Text, in Form Builder, even if narrow, doesn't suffer from this problem.

[ebruchez]

For reference, I didn't fix the narrow toolbar, but I fixed the fact that it didn't work.