Translate BlogDetailsViewController to Swift

[crazytonyli]

Description

The majority of the changes are translated, without much of the swiftification. I made small improvements here and there, but not a lot.

Testing instructions

The best way to test this change is to run the trunk branch and this branch on the iPad and iPhone simulators. Go to a WP.com site and a self-hosted site. You should not notice any difference in the blog details, which can be

• the left part of the split screen on the home screen on an iPad.
• WP.com site -> My Sites -> More
• The home screen of self-hosted sites.

[dangermattic]

	2 Warnings
⚠️	View files have been modified, but no screenshot or video is included in the pull request. Consider adding some for clarity.
⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

Generated by 🚫 Danger

[wpmobilebot]

📲 You can test the changes from this Pull Request in WordPress by scanning the QR code below to install the corresponding build.

	App Name	WordPress
	Configuration	Release-Alpha
	Build Number	29723
	Version	PR #24981
	Bundle ID	org.wordpress.alpha
	Commit	922d411
	Installation URL	5uo55o19s5j6o

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[wpmobilebot]

📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	29723
	Version	PR #24981
	Bundle ID	com.jetpack.alpha
	Commit	922d411
	Installation URL	62nf46pqretn8

Automatticians: You can use our internal self-serve MC tool to give yourself access to those builds if needed.

[sonarqubecloud]

Quality Gate passed

Issues
5 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud