🐛 Update releases page for 3.16

[amyrlam]

Followed: #490

• Assumed date was today, Feb 18
• nextDate = Mar 25, 6wk from initialReleaseDate
• initialReleaseDate = Feb 12, date of blog post
• For version #s, went to GitHub repo links

Resolves: #568

Let me know if needs edits or feel free to commit directly to the branch!

[github-actions]

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	0 B
ember-website-fastboot.js	0 B	0 B
vendor.js	0 B	+1 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[locks]

Thanks for the help!
Left some corrections, the way this works is a bit strange. The release dates for the libraries is the date it was published to npm, even though our "ember release" is the blog post announcement.

[github-actions]

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	0 B
ember-website-fastboot.js	0 B	0 B
vendor.js	0 B	-1 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[github-actions]

Files that got Smaller 🎉:

File	raw	gzip
vendor.js	-791 B	-321 B

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	+1 B
ember-website-fastboot.js	0 B	0 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[github-actions]

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	+1 B
ember-website-fastboot.js	0 B	0 B
vendor.js	0 B	0 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[github-actions]

Files that got Smaller 🎉:

File	raw	gzip
vendor.js	-791 B	-321 B

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	0 B
ember-website-fastboot.js	0 B	0 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[amyrlam]

@locks I think it makes sense... ready for re-review

I can do the next one, started following ember-learn/ember-blog#536

[github-actions]

Files that got Smaller 🎉:

File	raw	gzip
vendor.js	-791 B	-321 B

Files that stayed the same size 🤷‍:

File	raw	gzip
ember-website.js	0 B	0 B
ember-website-fastboot.js	0 B	0 B
ember-website.css	0 B	0 B
vendor.css	0 B	0 B

[locks]

Much appreciated, thank you!