Sets workspace path when opening the assistant. #1125

Job	Run time
positron / docker	1m 17s
jupyterlab / native (macos-latest)	3m 44s
build / build	3m 30s
agent / agent	1m 55s
jupyterlab / native (windows-latest)	7m 37s
jupyterlab / native (ubuntu-latest)	3m 15s
positron / native (macos-latest)	36s
web / web	1m 57s
positron / native (windows-latest)	1m 23s
positron / native (ubuntu-latest)	28s
bats / docker (ubuntu-latest)	1m 13s
bats / native (macos-latest)	22s
cypress / native (macos-latest)	1m 7s
bats / native (windows-latest)	1m 14s
cypress / native (windows-latest)	4m 31s
bats / native (ubuntu-latest)	11s
cypress / native (ubuntu-latest)	42s
	35m 2s

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