Everywhere: Fix spelling mistakes

Author: https://github.com/mjz19910
Commit: 10ec98dd38
Pull-request: https://github.com/SerenityOS/serenity/pull/11694
Reviewed-by: https://github.com/Dexesttp
Reviewed-by: https://github.com/creator1creeper1 ✅
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibC/fenv.cpp

@@ -7,7 +7,7 @@
 #include <AK/Types.h>
 #include <fenv.h>
 
-// This is the size of the floating point envinronment image in protected mode
+// This is the size of the floating point environment image in protected mode
 static_assert(sizeof(__x87_floating_point_environment) == 28);
 
 static u16 read_status_register()