Add language autocomplete for supported languages #501

Job	Run time
charts-tests / Chart Data Extractor - Build and test	29s
build-template / Build E2B Template	2m 3s
performance-tests / Performance tests	1m 42s
js-sdk / JS SDK - Build and test	2m 8s
python-sdk / Python SDK - Build and test	2m 46s
cleanup-build-template / Cleanup Build Template	12s
	9m 20s

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