fix: top panel S10 min/max was showing S0 data

Condition 'topIdx < 10' in updateLiveDisplay() excluded slot 10
from getting its own min/max values. Fallback used sMinT/sMaxT from
the current slot (_currentSensorIdx) instead of S10's cached values.

Changed to 'topIdx <= 10' so S10 (DHT22 on GPIO 10) gets correct
min/max from _cachedMin[10]/_cachedMax[10]/_cachedHumMin[10]/_cachedHumMax[10].

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

Author: angeloINTJ

src/AppManager_HistoryAlarm.cpp

@@ -183,7 +183,7 @@ void AppManager::updateLiveDisplay( ) {
  _displayMgr->setSlotMinMax(sMinT, sMaxT, sMinH, sMaxH);
  /* Top slot min/max — may differ from _currentSensorIdx when fixed */
  int topIdx = _displayMgr->getTopSlotIdx( );
- if (topIdx >= 0 && topIdx < 10 && topIdx != slotIdx) {
+ if (topIdx >= 0 && topIdx <= 10 && topIdx != slotIdx) {
  float tMinT = (_cachedMin[topIdx] < 999.0f) ? _cachedMin[topIdx] : NAN;
  float tMaxT = (_cachedMax[topIdx] > -999.0f) ? _cachedMax[topIdx] : NAN;
  float tMinH = (_cachedHumMin[topIdx] < 999.0f) ? _cachedHumMin[topIdx] : NAN;