Context menu of TinyMCE is overriding the default context menu

[jonasraoni]

Describe the bug
The behavior of TinyMCE on the 3.4 has been changed and it's displaying its own menu instead of default browser menu.

Given that it just has a "Link" menu, which isn't that great, it makes sense to recover the old behavior or make it more useful.

To Reproduce
Steps to reproduce the behavior:

1. Access a form which has a TinyMCE editor
2. Right-click on its text area

What application are you using?
OJS 3.4

Additional information

• https://forum.pkp.sfu.ca/t/authors-unable-to-access-right-click-options-on-abstract-form/94682
• https://forum.pkp.sfu.ca/t/right-click-on-tinymce-space-is-not-working-correctly/91956