Update BP Hello Screen / Changelog for 14.0.0

[imath]

We need to update the content for it, but testing BuddyPress within WP Playground makes me think we should also search why we are redirecting to the WP Admin home instead of our BP Components settings page.

I believe being directly inside this part of BuddyPress after a fresh install would save some time to the Admin User to set the first BP Settings (like component activation...).

[imath]

• I agree with this @johnjamesjacoby's opinion: ​https://buddypress.trac.wordpress.org/ticket/8132#comment:2 We probably need to consider stop using a popup window. Ideally & imho once we have #9098 fixed: this changelog information should probably be an admin notice to each Site Administrator.

• Looking at [11999] I don't think there's a specific reason about why redirecting to the dashboard page instead of the BP Components one. I just believe it's easier as we don't need to check whether BuddyPress is network installed or not to build the query args.

Our Main settings page is a submenu of 'settings.php' in Network admin while it's a submenu of 'options-general.php' in regular WordPress sites.

• Move the Hello Modal into the BP Components Admin screen: this should be easier for new installs to directly see where Admins can set their BuddyPress options / URLs..
• Update the Hello Modal "What's new text" to inform about 14.0.0 changelog.

Trac ticket: ​https://buddypress.trac.wordpress.org/ticket/9188

[dcavins]

Minor language updates.

[imath]

In 13946:

Update Hello Modal for 14.0.0

• Update the Hello Modal text.
• Move the Hello Modal to the BuddyPress component settings screen.

Props dcavins

Fixes #9188
Closes ​https://github.com/buddypress/buddypress/pull/324