Feature/path normalization (#1674)

* Path normalization (making sure there are fewer cases of '"..."'
* Using more std::filesystem::path instead of std::string
* Update Ghoul

modules/base/basemodule.cpp

@@ -213,6 +213,7 @@ std::vector<documentation::Documentation> BaseModule::documentations() const {
         ScreenSpaceImageLocal::Documentation(),
         ScreenSpaceImageOnline::Documentation(),
 
+        ConstantRotation::Documentation(),
         FixedRotation::Documentation(),
         LuaRotation::Documentation(),
         StaticRotation::Documentation(),