Add new symlinks for new actions
@iasensio Here I'm adding a few more sounds I forgot in the last merge request. Since we will have those in the new theme, it's good to add them here as well. The only one I didn't add was audio-volume-change because none of the Oxygen sounds seem to fit well. Besides, when there's no sound in a theme, the spec says it's supposed to fall back to the freedesktop provided one, which is what is used in Plasma currently anyway.
Oxygen-Sys-Warning.ogg > battery-caution
Oxygen-Sys-App-Error-Critical.ogg > battery-low
Oxygen-Im-Contact-Out > bell-window-system
Oxygen-K3B-Insert-Medium > device-added
Oxygen-Im-New-Mail > device-removed
Edited by Guilherme Marçal Silva