Split main js files into modules and add them to the server bundle

[ChristophWurst]

No description provided.

[ChristophWurst]

Loading the files app on master: 104 js files loaded
this branch: 89

And I'm not even done 🚀

[ChristophWurst]

I think I might stop at this point before this gets even less reviewable. It's possible to do this transition in another one or two PRs.

[ChristophWurst]

• BUG: after a local file is selected for upload, nothing happens. no error, no upload, no visual changes.

[ChristophWurst]

@juliushaertl I've rebased onto master to resolve conflicts from #13407. Please have a look if I applied the changes correctly (should you find them in this huge diff).

[juliusknorr]

How about having a separate chunk for code that is only required when a user is logged in?
Besides the contactsmenu, when looking at core.json we probably also don't need to load systemtags/setupchecks on public pages.

[ChristophWurst]

Sounds good! We can definitely try to load them only if required. We just have to check if the code still runs 😉

[juliusknorr]

@juliushaertl I've rebased onto master to resolve conflicts from #13407. Please have a look if I applied the changes correctly (should you find them in this huge diff).

Looks good.

[ChristophWurst]

Thanks for checking! I've now also added folders in src for OCA and OCP. I like what you did with OC on the other branch. This keeps the scripts a bit more organized :)

[ChristophWurst]

Alright, this introduced a little 🐛 I'm unable to find 🔍. I'll do this in a bunch of smaller, more reviewable PRs :)