* Update toltec-base to 1.2-1

Only disable sys-subsystem-net-devices-usb1.device if on a reMarkable 1

* Formatting fix

* Make shellcheck happy

* Fix shellcheck source path

* Switch to using $arch variable

* Add code to unmask any rM2's with an existing install

* Have toltec-base clean itself up on uninstall

This is so that toltecctl uninstall properly returns to the previous state.

* Fix install-lib docstring

### Updated Packages
- `koreader` - 2023.04-1 (#672 #681)
- `display`, `rm2fb-client` - 0.0.31-1 (#680 #686)
  - If rm2fb fails to start on install, disable it to avoid soft-bricking the device
  - Add support for the following OS versions:
    - 3.2.2.1581
    - 3.2.3.1595
- `wordlet` - 0.0.2-2 (#670)
  - Swap M and N on keyboard
  - Fix image thumbnail code
- `harmony` - 0.2.2-1 (#670)
  - Fix exporting individual layers
- `simple` - 0.2.0-2 (#670)
  - Add "range" input widget
  - Add "canvas" widget
  - Less debug output
  - Make images clickable
  - Move 'timeout' to its own thread instead of jamming task queue
  - Ignore empty lines
- `remux` - 0.2.4-1 (#670)
  - Add "suspend" to remux FIFO api
- `rpncalc` - 0.0.3-2 (#670)
  - Make it more like the hp48
- `toltec-base` - 1.2-1 (#685)
  -  Only disable sys-subsystem-net-devices-usb1.device if on a reMarkable 1. On a reMarkable 2, this makes SSH over usb no longer available.
  - Make toltec-base properly clean itself up on uninstall
- `kernelctl` - 0.1-6 (#691)
  - Reset to the default kernel on uninstall so that `toltecctl uninstall` will return the device to a stock state
- `restream` - 1.2-1 (#688)
- `fbink`, `fbdepth`, and `fbink-doom` - 1.25.0-1 (#687)

**Note:** This doesn't change what OS version that toltec supports, as full support still requires `ddvk-hacks` to be updated, and for proper testing of various other packages.