Use tide instead of LSP mode

LSP turns out to be very slow with files larger than 100 lines (sic)
Also, disable cursor blinking.

languages/javascript.el

@@ -2,6 +2,11 @@
   :requires (web-mode company-web lsp)
   :ensure t)
 
+(use-package tide
+  :ensure t
+  :after (company flycheck)
+  :hook ((before-save . tide-format-before-save)))
+
 ;; Use js2-mode for javascript editing
 (add-to-list 'auto-mode-alist '("\\.js\\'" . js2-mode))
 (add-to-list 'auto-mode-alist '("\\.json\\'" . js2-mode))
@@ -9,17 +14,22 @@
 ;; Use js2-mode for typescript editing
 (add-to-list 'auto-mode-alist '("\\.ts\\'" . js2-mode))
 
-;; Language Server Protocol is used for completion
-(add-hook 'js2-mode-hook 'lsp)
-
 (defun activate-js2-mode ()
 	"JS2 mode overrides."
+  (tide-setup)
 	(set-indent 2)
 	(column-enforce-n 80)
 	(setq-local js2-basic-offset 2)
+  (setq-local js2-strict-missing-semi-warning nil)
+  (setq js2-mode-show-parse-errors nil)
+  (setq js2-mode-show-strict-warnings nil)
+  (tide-hl-identifier-mode +1)
+
+  (flycheck-add-next-checker 'javascript-standard 'javascript-tide 'append)
+  (setq-local flycheck-check-syntax-automatically '(save mode-enabled))
 
   ;; "Company list override."
   (add-to-list (make-local-variable 'company-backends)
-               '(company-yasnippet company-lsp)))
+               '(company-yasnippet company-tide)))
 
 (add-hook 'js2-mode-hook 'activate-js2-mode)