Emacs: Add json-mode and activate lsp-mode for it.

init.d/programming/lsp.el

@@ -44,6 +44,7 @@
          (c-mode . lsp)
          (python-mode . lsp)
          (nxml-mode . lsp)
+         (json-mode . lsp)
          (lsp-mode . lsp-enable-which-key-integration)))
 
 ;; Eye-candy and flycheck support for lsp-mode.

init.d/text/misc.el

@@ -209,5 +209,7 @@
 ;; i3 configuration files.
 (use-package i3wm-config-mode)
 
+(use-package json-mode)
+
 (provide 'text/misc)
 ;;; misc.el ends here