Add angular language server (#10166)

languages.toml

@@ -8,6 +8,7 @@ use-grammars = { except = [ "hare", "wren", "gemini" ] }
 als = { command = "als" }
 ada-language-server = { command = "ada_language_server" }
 ada-gpr-language-server = {command = "ada_language_server", args = ["--language-gpr"]}
+angular = {command = "ngserver", args = ["--stdio", "--tsProbeLocations", ".", "--ngProbeLocations", ".",]}
 awk-language-server = { command = "awk-language-server" }
 bash-language-server = { command = "bash-language-server", args = ["start"] }
 bass = { command = "bass", args = ["--lsp"] }