OCF template upgrade

[axmmisaka]

I'm OK keeping this site static and minimal but maybe it is worth updating the dependent libraries a bit for more functionalities

Update from Storce

Issue

Visit templates.ocf.berkeley.edu, and you can see templates for procedure IT emails.
We want to add a button that copies the rendered template to the user's clipboard.

TODO

There are two ways you can work on this:

Approach 1

1. Stick with the current JQuery website on the main branch, and implement the copy button logic. You can check out [/pull/41]. You can either resolve the comments or start your own branch. [Implemented]
2. Update bootstrap css to 5+ (and other dependencies if necessary)

Approach 2

1. Check out [/pull/44] by axmmisaka, an effort to rewrite the website with React. Work on completely migrating the website to react
2. Add the copy button in React.

[sophiebsw]

yes please, updating dependencies is always welcomed

[axmmisaka]

FYI #44 does not rewrite everything in React, it just replaced jQuery with modern DOM API