Links for .package.d files integrated in menu.

Remove duplication in cases like:
```
foo.package 
foo.module1
...
foo.moduleN
```

Before PR
```
.foo (clickable)
 foo (package) 
  foo.module1
  ...
  foo.moduleN
```

After PR
```
foo (package & clickable) 
  foo.module1
  ...
  foo.moduleN
```