Remove paragraphs tab for bulk management

Problem/Motivation

There are users that are uploading paragraphs on their own, instead of embedding on the parent entities.
This is bad UX for translators, and even if this is a desirable solution in some cases, most of them should be being embedded in their parent entities (e.g. nodes).

Proposed resolution

We should hide this tab by default, and have the option of showing it, but only if this flag is activated, so we prevent people of using it unless they really know the pros and cons.

Remaining tasks

Patch that disables the paragraphs tabs and menu links if the option is disabled, which will be the default.

User interface changes

Paragraphs tab is not shown.
Added a contrib section in the settings page for extending with integration settings for contrib modules.

API changes

None.

Data model changes

Added preference.contrib.paragraphs.enable_bulk_management in lingotek.settings configuration object and proper config schema.