add typescript-mode

[moellep]

Add typescript-mode, possibly from there https://github.com/emacs-typescript

[moellep]

Actually typscript-mode doesn't work fully with react tsx or jsx files, so maybe tsx-mode would be better:
https://github.com/orzechowskid/tsx-mode.el
Although it seems to require a lot of other emacs modules.

[e-carlin]

Switching to lsp-mode and then using one of the typescript language servers is another option.

@moellep what is it that you want from typescript-mode (ex syntax highlighting)?

[moellep]

Syntax highlighting + correct indentation. Right now using typescript-mode, it badly mangles the react indentation in tsx files.

[robnagler]

FYI, you may need to set some syntactic entities to match what vs code does. I was just dealing with Java which was getting very badly mangled and adjusted a couple of things that made it better.