v10.0.4

What's Changed

• [DOCS] Rename slack channel to #extension-builder by @alexander-nitsche in #572
• [TASK] Align with new TYPO3 documentation standards by @alexander-nitsche in #582
• [TASK] Align with new TYPO3 documentation standards (follow-up) by @alexander-nitsche in #587
• [BUGFIX] Generate correct .xlf files
• [BUGFIX] Language file not merged
• [BUGFIX] fixes links in extension module
• [TASK] Add TER + documentation + repository to composer.json
• [BUGFIX] Strip trailing spaces after comma

Full Changelog: v10.0.3...v10.0.4