Problem with long values
When my data is long and varies mostly at the end of the value
I need to be able to see the ends of long values
So I can see the differences in my legend values from the front and the back of the values

Describe the solution you'd like
Many options:

• Option that lets you choose to middle ... instead of at the end (as it is today)?
• Selected approach: Option multi-line legends

There are other solutions we shouldn't look into in the scope of this issue: #963 Focus on a responsive solution (we should still do the resize issue too as that satisfies interactivity cases...just not as a solution to this issue)

Describe alternatives you've considered
There are none, makes lines with multiple series hard to read

Additional context
Screenshots on this issue: elastic/kibana#41418
TSVB related issue: elastic/kibana#102327
Related problem on dropdowns: elastic/kibana#103701

Checklist

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