Do not show Auto Detect language choice for empty files (#269781)

* Do not show Auto Detect language choice for really short files

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* Update src/vs/workbench/browser/parts/editor/editorStatus.ts

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Benjamin Pasero <benjamin.pasero@gmail.com>