[Lazarus] IDE icon "defaults", old icon "browse"

[AlexeyT]

Now fpc 3.0.4 shows ide compile err.

"Operator + is not overloaded for const string".
   lisTheFileIsNotALazarusProjectCreateANewProjectForThi =
     +'The file "%s" is not a Lazarus project.'
     +'%sCreate a new project for this "%s"?';