Fix #11721 Add support for line traces classification #11733
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Description
This PR adds the classification mode for the line chart so that the line traces can be categorized for the visualization.
Please check if the PR fulfills these requirements
What kind of change does this PR introduce? (check one with "x", remove the others)
Issue
What is the current behavior?
Currently, the line trace only supports line, line+marker, and scatter type charts.
#11721
What is the new behavior?
The line traces type will have classification style in dropdown and after it is selected the line traces will be categorized according to the classification attribute field selected.

Breaking change
Does this PR introduce a breaking change? (check one with "x", remove the other)
Other useful information