Change the red palette to magenta and add a generic red palette

[nebula-aac]

Current Behavior

The red palette is actually a range of hues in the red-purplish angling towards more pinkish and purplish.

Need a new red palette that specific to the red color. Can use #F91313, which is being used for the notification error as the starter color.

Expected Behavior

Screenshots/Logs

Environment

• Host OS: Mac Linux Windows
• Platform: Docker or Kubernetes
• Meshery Server Version: stable-v
• Meshery Client Version: stable-v

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