bug: Edge labels rendered behind nodes and edges

[handreyrc]

Describe the Bug

There are two scenarios where edge labels are not being rendered on top.
1- When edges with labels are defined into parent nodes, the labels are not visible and are probably being rendered underneath the parent node.
2- When and edge is selected it is broght to the top layer, however, it should not be on top of its own label.

Steps to reproduce

First scenario:

1. Open the storybook.
2. Select a sample workflow with edges containing labels defined into a parent node.
3. Check if the label is visible.

Second scenario:

1. Open the storybook
2. Select a sample workflow with edges containing labels.
3. Select the edge with label.
4. Check if the label is on top of the edge.

Expected Behavior

Edge labels must always be rendered on top and be visible.

Editor Version

No response

Platform

Web / Browser

Additional Context

No response