wip: remove the need for CORS headers

[hacdias]

Please see #728.

Needs:

• wip: allow window.ipfs ipfs-webui#899

[hacdias]

@lidel @olizilla we will need to enable window.ipfs on Web UI or create another way (like window.ipfsDesktop so Web UI knows we're talking to Desktop.

IMO, it would be easier to just enable window.ipfs when calling the ipfsReduxBundle on Web UI. It would just work. Right now, I'm injecting the ipfs object into the window. It seems to be working. It just isn't recognized by the Web UI

[hacdias]

@olizilla @lidel I just updated this PR to use a version from Web UI that uses window.ipfs. You can try it out. We don't need CORS headers anymore.

We just need to merge ipfs/ipfs-webui#899 and this one 😄

Suggestions?

[hacdias]

Note to self: something that's happening: npm ci works; npm install gives an error on ipfs-postmsg-proxy. TODO: check what is updated.

[hacdias]

So, we should really have another mechanism for IPFS Desktop like window.ipfsDesktop so we don't show this to the users.

[hacdias]

will tidy up this PR.

[lidel]

Ideally there should be a separate attribute, eg. window.ipfsDesktop so there is no confusion about interface being direct, without any sandbox. (Support for this new attribute needs to be added to ipfs-redux-bundle first)