feat(skymp5-client): adjust default game hours offset

[Ansgar-skymp]

[!IMPORTANT] Change default hoursOffset to 0 in TimeService to align game time closer to UTC.

• Behavior:
  • Change default hoursOffset from -3 to 0 in getTime() of TimeService class.
  • Affects game time calculation by aligning it closer to UTC.
• Misc:
  • No other changes in logic or additional features added.

^{This description was created by for fb845d61c505c415edb7c833c080dccc771950d3. It will automatically update as commits are pushed.}