Update str_view_t typedef

include/lexer/lexer.h

@@ -7,9 +7,10 @@
 #define VALID_JSON true
 #define INVALID_JSON false
 
-typedef const char *const str_view_t;
+typedef const char *str_view_t;
 
 typedef enum {
+	TK_NO_TOKEN,
   TK_L_BRACE,
   TK_R_BRACE,
   TK_L_BRACKET,