feat: implement native language search in language dropdown #660

Job	Run time
Lint commit messages	46s
Lint & format-check changed JS files	1m 1s
Jest tests & coverage	1m 21s
Security audit	13s
Build (Node 22.x)	51s
Cypress E2E	2m 22s
Build (Node 20.x)	55s
	7m 29s

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