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    Bug 
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    Resolution: Done
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    Major 
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    None
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    None
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        False
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        False
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https://github.com/eclipse/che/issues/19564
Describe the bug
Currently, when Dashboard fails to preload data (plugins/devfile/workspaces) it just silently does not show objects (samples cards, workspaces). Instead, it should show an error which informs users that requests fails due some reason.
It may overlap a bit with: [UD] Show a proper error page when Che API is not available #18092