refactor(helper): update module path and function names

- move `helper` package files to root `helper` directory
- update all helper imports
- rename `GetLines` to `getLines` for consistent naming convention

🤖

2024/01/main.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"aoc2024/helper"
 	"fmt"
 	"sort"
+
+	"aoc/helper"
 )
 
 type list struct {

2024/02/main.go

@@ -1,9 +1,10 @@
 package main
 
 import (
-	"aoc2024/helper"
 	"fmt"
 	"sort"
+
+	"aoc/helper"
 )
 
 type reports []report

2024/go.mod

@@ -1,3 +0,0 @@
-module aoc2024
-
-go 1.23.3

go.mod

@@ -0,0 +1,3 @@
+module aoc
+
+go 1.23.3

helper/input.go

@@ -11,7 +11,7 @@ import (
 
 const INPUT_FILE = "input"
 
-func GetLines() *bufio.Scanner {
+func getLines() *bufio.Scanner {
 	wd, err := os.Getwd()
 	filePath := filepath.Join(wd, INPUT_FILE)
 
@@ -24,7 +24,7 @@ func GetLines() *bufio.Scanner {
 }
 
 func ReadLinesTwoIntSlices() (list_a []int, list_b []int) {
-	scanner := GetLines()
+	scanner := getLines()
 	for scanner.Scan() {
 		parts := strings.Fields(scanner.Text())
 
@@ -39,7 +39,7 @@ func ReadLinesTwoIntSlices() (list_a []int, list_b []int) {
 }
 
 func ReadLinesToIntSlices() (lines [][]int) {
-	scanner := GetLines()
+	scanner := getLines()
 	for scanner.Scan() {
 		string_line := strings.Fields(scanner.Text())
 		int_line := make([]int, len(string_line))