Allow the user to use search at their own risk

[xusheng6]

Currently we disabled search while debugging because it may not work in the best way. However, it can still work in a great amount of cases, e.g., when searching in a small and known-good region. As such, we should NOT just disable it in all cases. We should somehow warn the user the search might not work as expected, explain why, and allow the user to use it anywyas