Activate tree-sitter modes in .emacs

.emacs

;;;================================
;;         Java-releated settings
(when (treesit-language-available-p 'java)
  (add-to-list 'major-mode-remap-alist '(java-mode . java-ts-mode)))

;;;================================
;;         js and JSON-releated settings
(when (treesit-language-available-p 'javascript)
  (add-to-list 'major-mode-remap-alist '(js-mode . js-ts-mode)))

;;;================================
;; typescript (js with some typesafety)
(when (treesit-language-available-p 'typescript)
  (add-to-list 'auto-mode-alist '("\\.ts$" . typescript-ts-mode)))
(when (treesit-language-available-p 'tsx)
  (add-to-list 'auto-mode-alist '("\\.tsx$" . tsx-ts-mode)))

;;;================================
;; CSS mode settings
(when (treesit-language-available-p 'css)
  (add-to-list 'major-mode-remap-alist '(css-mode . css-ts-mode)))