[BUG] "Check Temp" option : unable to set "true" and show CPU cores temp

The check temp option will not set to true in the UI, even after forcing it by setting check_temp="false" in bashtop.cfg.

lmsensors is installed and gives

```
$ sensors --version
sensors version 3.6.0 with libsensors version 3.6.0

$ sensors
nvme-pci-0100
Adapter: PCI adapter
Composite: +42.9°C (low = -273.1°C, high = +69.8°C)
(crit = +79.8°C)
Sensor 1: +43.9°C (low = -273.1°C, high = +65261.8°C)
Sensor 2: +42.9°C (low = -273.1°C, high = +65261.8°C)
Sensor 5: +55.9°C (low = -273.1°C, high = +65261.8°C)

k10temp-pci-00c3
Adapter: PCI adapter
Tctl: +40.0°C

```

To Reproduce:

````
# dnf install i3 lmsensors terminator bashtop
````
Login, run bashtop and try to set 'Check Temp' to "true".

**Info (please complete the following information):**
- Bashtop version: 0.9.25
- (Linux) Linux distribution and version: Fedora 42
- (Linux) Data collection type (/proc or psutil): psutil and proc
- Psutil version: 6.1.1
- Terminal used: terminator
- Font used: Anonymice Pro
- Bash version: 5.2.37(1)
- Locales: output of `locale -v`
```
LANG=fr_FR.UTF-8
LC_CTYPE="fr_FR.UTF-8"
LC_NUMERIC="fr_FR.UTF-8"
LC_TIME="fr_FR.UTF-8"
LC_COLLATE="fr_FR.UTF-8"
LC_MONETARY="fr_FR.UTF-8"
LC_MESSAGES="fr_FR.UTF-8"
LC_PAPER="fr_FR.UTF-8"
LC_NAME="fr_FR.UTF-8"
LC_ADDRESS="fr_FR.UTF-8"
LC_TELEPHONE="fr_FR.UTF-8"
LC_MEASUREMENT="fr_FR.UTF-8"
LC_IDENTIFICATION="fr_FR.UTF-8"
LC_ALL=
```

contents of `$HOME/.config/bashtop/error.log`
````
New instance of bashtop version: 0.9.25 Pid: 553676
````

(enable error-logging in "$HOME/.config/bashtop/bashtop.cfg" if missing)