fix: update manifest for community plugin submission

- Remove 'obsidian-' prefix from plugin ID
- Fix authorUrl to point to author profile
- Remove 'Obsidian' from description
- Bump version for new release

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

chore: prepare v1.0.1 release - fix metadata for community plugin sub…

…mission

- Fix plugin id to obsidian-linkflow
- Translate description to English
- Fix authorUrl placeholder
- Add versions.json for Obsidian registry
- Update author to Fabien Polly (Infinition)

Release v1.0.0