kcm/keys: make it frameless
This is a more modern style that most QML KCMs have opted into, so let's do it here too. This reduces the undesirable "frames within frames" effect.
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This is a more modern style that most QML KCMs have opted into, so let's do it here too. This reduces the undesirable "frames within frames" effect.
| Before | After |
|---|---|
|
|