get rid of read to str

include/utils.hpp

@@ -7,8 +7,8 @@
 
 #define FILL_CHAR ' '
 
-// wrapper around readFile func so we can avoid readFileToStr and reuse one buffer, this should be faster and less bug prone?
-#define fastReadNum(path, val) readFile(path, buf, sizeof(buf)); val = strtoll(buf, NULL, 10)
+// wrapper around readFile func
+#define fastReadNum(path, val) readFile(path, buf, sizeof(buf)); val = std::strtoll(buf, NULL, 10)
 
 enum JUST {
   RIGHT,
@@ -21,7 +21,6 @@ inline std::string pNum(auto num, uint8_t decs = 0) { return std::format("{:.{}f
 std::string pad(std::string s, uint8_t len, JUST j = JUST::RIGHT);
 std::string center(std::string str, uint8_t len);
 std::string pBytes(double bytes, bool isKbytes = false);
-std::string readFileToStr(std::string path, size_t trim = 4096);
 ssize_t readFile(std::string path, char* buffer, size_t maxlen);
 ssize_t readFile(const char* path, char* buffer, size_t maxlen);
 std::string getFirstDir(std::string_view path);