#3475871: Break up xb-general into more specific files

Closes #3475871

This MR splits the long xb-general.cy.js into different files (some new, some existing).

New files created:

• component-operations.cy.js: meant for tests that deal with creating, reading, updating, deleting components.
  • Deleted the add-section.cy.js file and moved those tests to component-operations.cy.js
• primary-panel.cy.js: tests for the primary panel
• routing.cy.js: moved the routing test to it's own file
• error-handling.cy.js: moved the error test to it's own file

Renamed contextual-menu.cy.js -> contextual-panel.cy.js to match naming convention of primary panel.