feat(i18n): add translations for completion message #108

Job	Run time
Detect Changes	7s
Install Manifest Validation	12s
TypeScript Type Checking	20s
Jest Tests	54s
Story Checkbox Validation	15s
IDE Command Sync Validation	13s
ESLint	19s
Performance Metrics	0s
Cross-Platform (${{ matrix.os }}, Node ${{ matrix.node }})	0s
Validation Summary	3s
	2m 23s

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