build-firmware-devel produces too large binaries for moxee

### Prerequisites

- [x] I have read [CONTRIBUTING.md](https://github.com/EFForg/rayhunter/blob/main/CONTRIBUTING.md)

### Bug Report Details

The moxee device has two partitions, root partition and user data:

```
df -h
Filesystem Size Used Available Use% Mounted on
ubi0:rootfs 66.6M 47.8M 18.8M 72% /
tmpfs 64.0K 4.0K 60.0K 6% /dev
tmpfs 78.6M 20.0K 78.6M 0% /run
tmpfs 78.6M 536.0K 78.1M 1% /var/volatile
tmpfs 78.6M 0 78.6M 0% /media/ram
tmpfs 78.6M 536.0K 78.1M 1% /var/lib
ubi0:usrfs 9.3M 1.8M 7.5M 19% /data
/dev/ubi3_0 6.6M 224.0K 6.0M 4% /usrdata
/dev/ubi1_0 34.4M 30.5M 3.9M 89% /firmware
ubi0:cachefs 32.5M 24.0K 30.8M 0% /cache
```

the firmware-devel build of rayhunter-daemon is 14 MB does not fit into /data.

we should reconsider where /data/rayhunter is stored and potentially symlink it onto the `rootfs` filesystem to get more space (similar to tplink installer). As it stands there is barely any room for recordings even with the release firmware.