Fandom Compatibility + permission overhaul

[m3w88]

This Pull Request does the following:

1. changes namespace to match Fandom
2. new permission of "blogmodedit" is introduced and default granted to sysop usergroup.
3. added logic to restrict blog editing to author and any user that has blogmodedit permission.

• This is meant to reduce fights over content viewed as an extension of user space.
• of course, a formal news team can utilize a collaborative approach for joint editing of blogs

All changes have been tested on MediaWiki 1.39.5 which matches current version of mediawiki that Fandom is running

[Universal-Omega]

This will break backwards compatibility by changing namespace ID, all current on there will disappear, and cannot be accessed. A maintenance script probably needs introduced in order to migrate namespace. Additionally changing the namespace ID conflicts with another extension, I can't remember which, which is why it was changed once before to what it is currently but we can probably change it anyway, thats not a huge problem, both probably shouldn't be used at the same time anyway.

[m3w88]

BlogPages is the extension in question that would conflict and the readme already tells people to not use both. This extension effectively stripping out every dependency + performed code clean up. Since people are advised to not use both extensions, there was no actual namespace id conflict.

if the new permission should be renamed, that is ok with me. Adding this prevents easily avoidable fights by making the determination that blogs are within the userspace.

• The only reasons for anyone other than author to edit is an admin or an agreed upon collaborative news team. Latter might benefit from a new permission that further restricts who can create a blog or edit a blog.

This pull request was specifically for compatibility with Fandom, if you do not want to merge this then I shall keep this separate.

[Universal-Omega]

I will probably merge this eventually.