chore(language/typescript): minor tweaks and simplification

modules/languages/siren-typescript.el

@@ -9,6 +9,7 @@
 ;; Requires Emacs 29.x or later for built-in treesit support.
 (when (fboundp 'typescript-ts-mode)
   (require 'siren-flycheck)
+  (require 'siren-js)
   (require 'siren-lsp)
   (require 'siren-treesit)
 
@@ -17,6 +18,10 @@
     :mode "\\.ts\\'"
     :hook
     (typescript-ts-mode . siren-typescript-mode-setup)
+    (typescript-ts-mode . siren-lsp-js-mode-setup)
+
+    :custom
+    (typescript-ts-mode-indent-offset 2)
 
     :config
     (siren-treesit-auto-ensure-grammar 'typescript))
@@ -24,24 +29,10 @@
   (use-package tsx-ts-mode
     :straight (:type built-in)
     :mode "\\.tsx\\'"
+    :hook
+    (tsx-ts-mode . siren-lsp-js-mode-setup)
     :config
-    (siren-treesit-auto-ensure-grammar 'tsx))
-
-  (defun siren-typescript-mode-setup ()
-    "Default setup function for `typescript-ts-mode' and `tsx-ts-mode'."
-    (let ((width 2))
-      (setq-local typescript-indent-level width
-                  indent-level width
-                  tab-width width))
-
-    ;; Disable semantic tokens as it typically causes an annoying delay with the
-    ;; syntax highlighting as you type. Essentially all new text is a very faded
-    ;; out grey color for the first 1-2 seconds as you type.
-    (setq-local lsp-semantic-tokens-enable nil)
-
-    (lsp-format-buffer-on-save-mode t)
-    (lsp-deferred)
-    (flycheck-mode t)))
+    (siren-treesit-auto-ensure-grammar 'tsx)))
 
 (provide 'siren-typescript)
 ;;; siren-typescript.el ends here