Cannot navigate the file list in side panel without mouse

[krassowski]

Description

Navigating the list of staged/changed/etc files in side panel is not possible without mouse. The tab jumps to next section immediately.

Reproduce

1. Open git side panel
2. Try to tab to a changed file to add it to staged
3. See focus jump over the list of files

Expected behavior

Can use jupyterlab-git without mouse

Context

• Python package version:

• Extension version:

• Git version:

• Operating System and its version:

Command Line Output

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Web Browser Output

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