SNT-294 users can define scales with a UI in which they can select range and colors

[Bewi]

What problem is this PR solving?

Replace json text field to a custom component for metric type scales

Related JIRA tickets

SNT-294

Changes

• Added a new form for legend_config of a metric type.
• Modified B-E to accept this input instead of a json string
• Add limits on array items based on legend_type

How to test

Go to SNT with an admin account (you can setup BFA dummy account).
Go to settings (on the burger navigation) which will bring you to the Layer tab of the settings.
From there, you can create a metric type (aka layer).
Try to play with the legend it should:

• Have two items by default
• Have type threshold by default
• Should not allow less than 2 items
• Should not allow more than 9 item for threshold, 4 for ordinal and 2 for linear.
• Should show an error if a value is already defined
• For threshold and linear, it should only accept numbers
• For ordinal it should allow strings

Print screen / video

Notes

There is a IASO PR modifying the API part here: BLSQ/iaso#2762

Doc

N/A

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