fix(edges): Fix colors for selected/hovered edges for light and dark themes

[jeff-phillips-18]

What

Closes #256

Description

Updates the colors for the line and background for the line for edges when selected and/or hovered. Also updates the badges for labels to set style rather than fill and stroke properties so they don't get overridden by styling.

Type of change

• [ ] Feature
• [x] Bugfix
• [ ] Code style update (formatting, renaming)
• [ ] Refactoring (no functional changes, no api changes)
• [ ] Build related changes
• [ ] Documentation content changes
• [ ] Other (please describe):

Screen shots / Gifs for design review

Surge

https://connector-styles.surge.sh/

[patternfly-build]

Preview: https://react-topology-pr-topology-258.surge.sh