refactor: update import paths to use internal package

internal/manga/chapter.go

@@ -0,0 +1,22 @@
+package manga
+
+import "time"
+
+type Chapter struct {
+	// FilePath is the path to the chapter's directory.
+	FilePath string
+	// Pages is a slice of pointers to Page objects.
+	Pages []*Page
+	// ComicInfo is a string containing information about the chapter.
+	ComicInfoXml string
+	// IsConverted is a boolean that indicates whether the chapter has been converted.
+	IsConverted bool
+	// ConvertedTime is a pointer to a time.Time object that indicates when the chapter was converted. Nil mean not converted.
+	ConvertedTime time.Time
+}
+
+// SetConverted sets the IsConverted field to true and sets the ConvertedTime field to the current time.
+func (chapter *Chapter) SetConverted() {
+	chapter.IsConverted = true
+	chapter.ConvertedTime = time.Now()
+}