Add Header - posit logo and menu #1169

Job	Run time
build / build	3m 4s
agent / agent	2m 23s
jupyterlab / native (macos-latest)	3m 38s
positron / docker	1m 29s
jupyterlab / native (windows-latest)	3m 33s
positron / native (macos-latest)	1m 6s
web / web	1m 30s
jupyterlab / native (ubuntu-latest)	2m 55s
positron / native (windows-latest)	1m 16s
positron / native (ubuntu-latest)	43s
cypress / native (macos-latest)	15s
bats / docker (ubuntu-latest)	22s
cypress / native (windows-latest)	12s
bats / native (macos-latest)	15s
cypress / native (ubuntu-latest)	29s
bats / native (windows-latest)	11s
bats / native (ubuntu-latest)	13s
	23m 34s

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