[TheStreamCode]

Summary

Refresh the seven WordPress.org listing screenshots for the 3.5.0 admin interface. The existing files still showed the pre-3.5.0 UI, visible WordPress footer bands and test data.

• all seven images are new 1920x1200 JPEGs captured from the live 3.5.0 admin on the staging WordPress install
• the ordering still matches the readme.txt Screenshots captions: file manager, permissions, search, quotas, groups, activity log, settings
• demo content was seeded for the shots (folders, documents and images, six groups, quotas, permissions and audit entries); all names and email addresses are fictional
• the README screenshot table and the WordPress.org listing both use the same files, so the repository and the plugin directory stay in sync

No runtime code, version metadata or release packages are changed by this PR.

Verification

• all seven files are 1920x1200 JPEG and load correctly
• screenshots correspond 1:1 to the existing == Screenshots == captions, so readme.txt needs no change
• the refreshed files are the ones referenced by README.md; no other tracked copies of the old screenshots exist
• captured from the WordPress 7.1.3 staging install running TeamVault 3.5.0