Fix: flickering when load report

[joko3ono]

Context

When I created the histogram, I found that the diagram (circos and histogram) flickered for up to 4 minutes or more, when it flickers, I can't inspect the diagram because it keeps rendering.

https://github.com/wurmlab/sequenceserver/assets/1142773/3ef9af05-2caa-46bc-9c3a-8015780edea9

Solution

In this PR, I separated the diagram and results rendering so that the diagram will only render once.

https://github.com/wurmlab/sequenceserver/assets/1142773/223efeb8-e054-445b-a902-3751df00e5a5

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