Tweak to model selection design #529

Job	Run time
build-and-smoke-freebuff-windows	3m 25s
build-freebuff	1m 31s
e2e-startup	1m 11s
e2e-slash-commands	58s
e2e-version	53s
e2e-agent-startup	2m 24s
e2e-ads-behavior	1m 13s
e2e-code-edit	59s
e2e-terminal-command	53s
e2e-help-command	1m 11s
	14m 38s

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