🐛 fix(navigation.go): fix the condition for determining if a navigation element is active

The /tmp/ directory is now added to the .gitignore file to exclude it from version control. In the navigation.go file, the condition for determining if a navigation element is active has been fixed to correctly handle cases where the activeNav string matches the elPath string. The tmp/main file has been deleted.

pkg/mark2web/navigation.go

@@ -55,7 +55,7 @@ func buildNavigationRecursive(tree *TreeNode, curNavMap *map[string]*NavElement,
 		subMap := make(map[string]*NavElement)
 		subSlice := make([]*NavElement, 0)
 		navEl := NavElement{
-			Active:   strings.HasPrefix(activeNav, elPath),
+			Active:   strings.HasPrefix(activeNav, elPath+"/") || activeNav == elPath,
 			Data:     el.Config.Data,
 			ColMap:   el.ColMap,
 			SubMap:   &subMap,