Add help icon for each perspective

Clicking on the help opens a new browser tab to our wiki pages:

• Queries: https://git-ainf.aau.at/interactive-KB-debugging/debugger/-/wikis/queries
• Repairs: https://git-ainf.aau.at/interactive-KB-debugging/debugger/-/wikis/faulty-axioms
• Test Cases: https://git-ainf.aau.at/interactive-KB-debugging/debugger/-/wikis/acquired-test-cases
• Background: https://git-ainf.aau.at/interactive-KB-debugging/debugger/-/wikis/input-ontology