(feat): Add KeePassXC extension

[7system7]

I migrated the original KeePassXC extension from Raycast. So I wrote the original creators in the package.json file because the license.

I saw that, there is another Pull request, but I noticed that, after I worked on this for a couple of hours. So, you can decide it, which is better, it is up to you.

1. I made some refactor on the original code, to make it more readable,
2. and I added some strict linting requirements in eslint.
3. In side of these, the extension can print more details about the KeePass' entries, like descriptions, dates and clickable urls.

My plan to make it compatible with flatpak/snap/appImage based installations too, but a bit later.

Peace! ✌️

[aurelleb]

I still need to try both, I will decide which one I prefer. Not a keypass user so will take me a bit of time. If anyone else want to try this one out, that's great.