Improve translation of power/silo usage tooltip

- Fix an instance where "silo-usage" translation was used without
arguments
- Use the same translation reference for the "Power usage"
- Make the ResourceBarWidget accept a cached transform with the tooltip
text
so it won't have to build the string itself
- Display an infinity symbol when the infinite power cheat is used
- Removes a magic number that is no longer used (>1000000 to check for
unlimited power)

mods/common/languages/en.ftl

@@ -202,11 +202,12 @@ exit-map-editor-confirm = Exit
 
 ## IngamePowerBarLogic
 ## IngamePowerCounterLogic
-power-usage = Power Usage
+power-usage = Power Usage: { $usage }/{ $capacity }
+infinite-power = Infinite
 
 ## IngameSiloBarLogic
 ## IngameCashCounterLogic
-silo-usage = Silo Usage: { $resources }/{ $capacity }
+silo-usage = Silo Usage: { $usage }/{ $capacity }
 
 ## ObserverShroudSelectorLogic
 camera-option-all-players = All Players