Set PerlNavigator as the language server for Perl (#6860)

book/src/generated/lang-support.md

@@ -105,7 +105,7 @@
 | pascal | ✓ | ✓ |  | `pasls` |
 | passwd | ✓ |  |  |  |
 | pem | ✓ |  |  |  |
-| perl | ✓ | ✓ | ✓ |  |
+| perl | ✓ | ✓ | ✓ | `perlnavigator` |
 | php | ✓ | ✓ | ✓ | `intelephense` |
 | po | ✓ | ✓ |  |  |
 | ponylang | ✓ | ✓ | ✓ |  |

languages.toml

@@ -1008,6 +1008,7 @@ file-types = ["pl", "pm", "t"]
 shebangs = ["perl"]
 roots = []
 comment-token = "#"
+language-server = { command = "perlnavigator", args= ["--stdio"] }
 indent = { tab-width = 2, unit = "  " }
 
 [[grammar]]