Alloy graph: handle long component names/labels

[wildum]

For some component names and for long labels, the text will go outside the box. This is not very pretty, we should find a way to improve it

Cropping the names/ids is probably not a good option because if you cant identify the nodes it defeats the purpose of using the graph of debugging

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[maxlemieux]

Example here from a k8s-monitoring alloy-metrics graph. It looks like we set the value here: https://github.com/grafana/alloy/blob/main/internal/web/ui/src/features/graph/buildGraph.ts#L11

[blewis12]

Fiddling around with this locally to see if I can get something pretty - I can submit a draft PR tomorrow for feedback :)