docs: DOC-161: Add beta tag for external taxonomy (#5103)

* [submodules] Build static HumanSignal/label-studio-frontend

Workflow run: https://github.com/HumanSignal/label-studio/actions/runs/7024798171

* docs: LSF Update

Workflow run: https://github.com/HumanSignal/label-studio/actions/runs/7024798171

* [submodules] Build static HumanSignal/label-studio-frontend

Workflow run: https://github.com/HumanSignal/label-studio/actions/runs/7052014579

* [submodules] Build static HumanSignal/label-studio-frontend

Workflow run: https://github.com/HumanSignal/label-studio/actions/runs/7052448346



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Co-authored-by: Caitlin Wheeless <caitlin.wheeless@gmail.com>