feat: add spotlight for navigation and some actions

[davidsoderberg]

• What kind of change does this PR introduce? (Bug fix, feature, docs update, ...) Adding a spotlight with navigation to some pages as side nav and toggle theme, sign out, change environment and change org.
• Why this change was needed? (You can also link to an open issue here) To make it easier to navigate and do some actions

[gitpod-io[bot]]

[davidsoderberg]