[tor-bugs] #24828 [Metrics/Relay Search]: Remove tabs when no data is available for graphs

[Tor Bug Tracker & Wiki]

#24828: Remove tabs when no data is available for graphs
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     Reporter:  irl                   |      Owner:  metrics-team
         Type:  enhancement           |     Status:  new
     Priority:  Medium                |  Milestone:
    Component:  Metrics/Relay Search  |    Version:
     Severity:  Normal                |   Keywords:
Actual Points:                        |  Parent ID:
       Points:                        |   Reviewer:
      Sponsor:                        |
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 When no data is available for graphs, currently a no data available image
 is displayed. If no data is available for both graphs, the tab should be
 hidden.

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24828>
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