feat: split Wikipedia app into separate files, change icon to cog

programs/src/wikipedia/Makefile

@@ -71,7 +71,7 @@ LIBS := $(TLS_LIB)/libtls.a $(BEARSSL)/libbearssl.a $(LIBC_LIB)/liblibc.a
 
 # ---- Source files ----
 
-SRCS := main.cpp stb_truetype_impl.cpp
+SRCS := main.cpp state.cpp theme.cpp text.cpp document.cpp network.cpp render.cpp stb_truetype_impl.cpp
 OBJS := $(addprefix $(OBJDIR)/,$(SRCS:.cpp=.o))
 
 # ---- Target ----