feat: remove "(prev Roo Cline)" from extension title in all languages
- Updated all package.nls.*.json files to remove "(prev Roo Cline)" references from extension display names
- Updated all localized README.md files to remove "(prev Roo Cline)" references from titles
- Updated main README.md to remove "(prev Roo Cline)" reference from title
- Affects 18 language files and 18 README files across all supported locales
Co-authored-by: Roo Code <roomote@roocode.com>