Fix volume region in the UI #216

Job	Run time
frontend-build	1m 1s
python-lint	16s
runner-test	1m 12s
gateway-build	18s
python-test (macos-latest, 3.8)	3m 5s
python-test (macos-latest, 3.9)	2m 32s
python-test (macos-latest, 3.10)	1m 59s
python-test (macos-latest, 3.11)	2m 59s
python-test (macos-latest, 3.12)	2m 7s
python-test (ubuntu-latest, 3.8)	2m 11s
python-test (ubuntu-latest, 3.9)	3m 57s
python-test (ubuntu-latest, 3.10)	3m 53s
python-test (ubuntu-latest, 3.11)	3m 44s
python-test (ubuntu-latest, 3.12)	4m 19s
python-test (windows-latest, 3.8)	5m 28s
python-test (windows-latest, 3.9)	3m 39s
python-test (windows-latest, 3.10)	6m 22s
python-test (windows-latest, 3.11)	5m 30s
python-test (windows-latest, 3.12)	6m 33s
runner-compile (linux, amd64, ubuntu-latest)	12s
runner-upload	12s
pypi-upload	22s
server-docker-upload	13m 8s
generate-json-schema	32s
update-get-dstack-tag	8s
	1h 15m 39s

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