This way we write to the same shared config instance as e.g. krdb and when we sync() it then also reads the current values.
- Group Reviewers
- R119:b4a04affd150: [FontAASettings] Use KSharedConfig
Alternative, probably better approach to D24561
- Verified that it reverts to default anti alias setting when the key isnt in fonts/config.xml, and that it writes it when present
- Verified that changing font hinting has krdb sync the correct current value to xrdb