Instead of defining 2 separate data arrays, use a array of struct
to make it less bug prone (no dependancy on order of elements).
Took opportunity to de-CamelCase the variable name;
Took opportunity to add appropriate const qualifier.
When first using the wmdrawer panel of WPrefs the settings
ClipAutoexpandDelay
ClipAutocollapseDelay
ClipAutoraiseDelay
ClipAutolowerDelay
are not yet saved in the user's config file and 'value' ends up
being undefined in showData() leading to a crash in adjustButtonSelectionBasedOnValue().
This patch is a workaround to make it possible to choose the config values for the
first time using WPrefs.
