Fix wrong layout recalculate if statement

[FlafyDev]

Describe your PR, what does it fix/add?

The PR fixes the if statement ConfigManager.cpp#L1039 which I assume should pass if one of the following conditions is true:

1. needsLayoutRecalc is 1.
2. the keyword (for example "general:gaps_out") contains "gaps_".
3. the keyword starts with "dwindle".
4. the keyword starts with "master".

right now it seems only the first if condition is corrent, while the others aren't.
The pr fixes the other conditions by

1. changing VALUE to COMMAND
2. fixing the second condition to currently check if the keyword contains "gaps_".

(for "hyprctl keyword general:gaps_out 120" it's: VALUE = "120" and COMMAND = "general:gaps_out".)

Is there anything you want to mention? (unchecked code, possible bugs, found problems, breaking compatibility, etc.)

no

Is it ready for merging, or does it need work?

Yes

[vaxerski]

can you do .contains() instead of .find() != 0?

[FlafyDev]

can you do .contains() instead of .find() != 0?

done (you mean instead of the .find() != std::string::npos, right?)

[vaxerski]

ya