Stats Review: Add Resources (P1)

[kean]

• Add mock data (anonymized, AI-generated)
• Add mock avatars (AI-generated)

The mocks are used in SwiftUI previews and in the debug builds to showcase all the Stats features. There are included in the release builds because there is no simple way to exclude them in SwiftPM. The impact is ~200KB, so I didn't thought it was worth spending time and increase complexity over 200KB.

[dangermattic]

	1 Warning
⚠️	This PR is larger than 500 lines of changes. Please consider splitting it into smaller PRs for easier and faster reviews.

Generated by 🚫 Danger

[sonarqubecloud]

Quality Gate passed

Issues
0 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

[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	28391
	Version	PR #24713
	Bundle ID	org.wordpress.alpha
	Commit	cf712aa
	Installation URL	6kff8nba87fi8

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[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	28391
	Version	PR #24713
	Bundle ID	com.jetpack.alpha
	Commit	cf712aa
	Installation URL	7sbrnt0jah480

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