Add option to create translations with "translation mode" off by default

[davidbrewer]

Currently, whenever you create translations for a page, you are always in "translation mode" by default. This may usually be what you want, but translation mode has some limitations and in some cases you might want to always go straight to creating fully localized versions of a page based on a copy of the page, rather than using the translation mode. In these cases it might be nice to be able to change the default so that a translated page starts out with "translation mode" off.

I'd suggest that the following approach would be most flexible:

• A global setting that impacts ALL content in case you always want to skip translation mode
• And, a property you can set per page type, in case you want most pages to use translation mode but there are specific more complex pages you would prefer to skip translation mode on.

[phildexter]

We're also thinking of changing the terminology because both are translation mode, just different ways of doing it.

We're thinking of going with Synced Translation

The button text should read
Stop Synced Translation
Start Synced Translation