Allow email notification for watched pages and own talk page

Summary:
These settings were enabled on Wolfplex wiki legacy settings.

It seems pretty straightforward to enable them everywhere.

References:

• https://www.mediawiki.org/wiki/Manual:$wgEnotifUserTalk
• https://www.mediawiki.org/wiki/Manual:$wgEnotifWatchlist

Reviewers: dereckson

Reviewed By: dereckson

Differential Revision: https://devcentral.nasqueron.org/D1506