Improve terminal button ui style #6333

Job	Run time
build-and-check	2m 59s
test-integration-packages/internal	1m 2s
test-integration-packages/billing	1m 2s
test-integration-common	48s
test-integration-sdk	1m 18s
test-integration-packages/agent-runtime	47s
test-integration-web	43s
test-integration-cli	45s
test-packages/billing	46s
test-.agents	40s
test-cli	53s
test-common	58s
test-sdk	50s
test-packages/agent-runtime	47s
test-web	1m 6s
test-packages/internal	51s
	16m 15s

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