Support for Multiple Workspaces

[this-fifo]

This was love at first sight when I saw it.

The first thing that came to my mind is that the window size space can be very limited, especially on a laptop, and sometimes I want to have multiple boards so I can organize my notes into different areas (work, life, home, etc.)

So I thought a nice enhancement would be to support this via urlparams

Ex:

manifest.app -> general notes
manifest.app/#home -> home stuff
manifest.app/#work -> work stuff
manifest.app/#life -> life stuff
...

More like a feature request/enhancement rather than an issue

[this-fifo]

@jonathontoon , I made a few changes to get 0 - 9 workspaces working using Alt + N as a shortcut (following @OllysCoding suggestion)

I noticed one thing though, if you are editing a note, the app is still globally listening for shortcuts, but those combinations are also used to write special characters such as ¡™£¢.

I think this could be seen as a negative writing experience, especially given some of those characters are very common under certain languages (like the ¡ for spanish)

The same occurs for the theme shortcut, which generates the † character for me (canadian english keyboard)

One way to fix this that was to remove the keydown event listener when the focus on a text input is active then resume it on blur

I added everything in new PR on #121 so you can see it / test it