Added a state variable isBenchmarkRunning in SkillTreeViewModel to track the status of benchmark execution. This state variable is used to conditionally disable specific UI components:
- The "Initiate test suite" button in TaskQueueView is disabled during the benchmark.
- All IconButtons in SideBarView are disabled during the benchmark.
- Node selection in SkillTreeView is disabled during the benchmark.
This ensures that the user cannot interact with these components while a benchmark test is running, thereby improving UX and preventing potential issues.
