rebuilt battery scripts

[PurpleWazard]

for some reason python is having a hard time writing to a system file with root permissions so i had to change how the battery scripts write to system files.

also updated the .conf example.

[AdnanHodzic]

Code LGTM, but when I started testing it, I ran into few issues, i.e:

when there's no config file present, auto-cpufreq --live returns following:

sudo auto-cpufreq --live

Note: You can quit live mode by pressing "ctrl+c"

----------------------------------- Warning -----------------------------------

Detected running GNOME Power Profiles daemon service!
This daemon might interfere with auto-cpufreq and has been disabled.

This daemon is not automatically disabled in "monitor" mode and
will be enabled after auto-cpufreq is removed.


-------------------------------------------------------------------------------

Linux distro: Ubuntu 23.10 Mantic Minotaur
Linux kernel: 6.5.0-17-generic
Processor: Intel(R) Core(TM) i7-8565U CPU @ 1.80GHz
Cores: 8
Architecture: x86_64
Driver: intel_pstate

------------------------------ Current CPU stats ------------------------------

CPU max frequency: 4600 MHz
CPU min frequency: 400 MHz

Core	Usage	Temperature	Frequency
CPU0      0.0%        46 °C      4559 MHz
CPU1      0.0%        42 °C      4474 MHz
CPU2      1.0%        43 °C       400 MHz
CPU3      0.0%        45 °C      4450 MHz
CPU4      0.0%        46 °C      4531 MHz
CPU5      0.0%        42 °C       400 MHz
CPU6      3.0%        43 °C      4430 MHz
CPU7      0.0%        45 °C       400 MHz

CPU fan speed: 0 RPM

---------------------------- CPU frequency scaling ----------------------------

Battery is: charging

Setting to use: "performance" governor
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
/usr/local/bin/cpufreqctl.auto-cpufreq: line 105: echo: write error: Device or resource busy
Setting to use: "balance_performance" EPP

Total CPU usage: 0.9 %
Total system load: 0.49
Average temp. of all cores: 44.00 °C 

Load optimal (load average: 0.49, 0.62, 1.00)
setting turbo boost: off

-------------------------------------------------------------------------------

		"auto-cpufreq" is about to refresh ..

but it works fine with config file present.

[PurpleWazard]

I not getting any errors with --live even without a conf file
Also note --live doesn't have the battery function in it only --monitor and --daemon

[AdnanHodzic]

Also note --live doesn't have the battery function in it only --monitor and --daemon

Let's make sure this is mentioned as part of #644 as there could be many questions about this.

Other then, that thank you for your contribution! Will make sure this one is also mentioned as part of 2.2.0 release.