fix: compilation warning for maybe unused variables

feature: shell - autocomplete and help menu improved

headers/shell.h

@@ -2,7 +2,7 @@
 
 #define PROMPT "> "
 
-static const char *POOP =
+[[__maybe_unused__]] static const char *POOP =
     "        /           ____/                   /       _           \\\n"
     "      _/        ___/_                      /       / \\___        \\_\n"
     "     /        _/'-,  `---._               /       /      \\_        \\\n"
@@ -43,22 +43,9 @@ static const char *POOP =
     "     \\_        \\___\"\"\"/\"\"     /                       `\"\"/\"\"  "
     "\n";
 
-typedef enum {
-	HELP,
-	REBOOT,
-	POWEROFF,
-	HALT,
-	STACK,
-	CLEAR,
-	ECHO,
-	COLOR,
-	MERDELLA,
-	DATE,
-	ERROR
-} CMD_TOK;
-
 void shell_init(void);
 void reboot(void);
 void halt(void);
 void print_stack(void);
 void date(void);
+void merdella(void);