docs: LSDV-5343: Docs for visibleWhen; remove FF_DEV_1372 (#4443)

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* docs: LSF Update

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

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

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

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

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

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

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

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

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* docs: LSF Update

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Co-authored-by: hlomzik <hlomzik@gmail.com>
Co-authored-by: hlomzik <hlomzik@users.noreply.github.com>