feat: infer power/lid events flag from the config contents

[fiffeek]

What does this PR do?

missing:

• docs
• tests

Why is this change important?

How to test this PR locally?

Related issues

Closes #113

[github-actions]

Package	Line Rate	Health
/home/runner/work/hyprdynamicmonitors/hyprdynamicmonitors	100%	✔
github.com/fiffeek/hyprdynamicmonitors/cmd	91%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/app	64%	➖
github.com/fiffeek/hyprdynamicmonitors/internal/config	80%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/dial	47%	❌
github.com/fiffeek/hyprdynamicmonitors/internal/filewatcher	68%	➖
github.com/fiffeek/hyprdynamicmonitors/internal/generators	84%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/hypr	78%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/matchers	97%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/notifications	63%	➖
github.com/fiffeek/hyprdynamicmonitors/internal/power	80%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/prepare	100%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/profilemaker	68%	➖
github.com/fiffeek/hyprdynamicmonitors/internal/reloader	85%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/signal	68%	➖
github.com/fiffeek/hyprdynamicmonitors/internal/tui	90%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/userconfigupdater	82%	✔
github.com/fiffeek/hyprdynamicmonitors/internal/utils	75%	➖
Summary	85% (6770 / 7995)	✔