feat: add debug touch drawing function and fix dashboard layout calculations

boards/esp32-32e/DisplayDriverTFT.cpp

@@ -326,3 +326,9 @@ HoldState DisplayDriverTFT::updateHold(unsigned long holdMs) {
     }
     return h;
 }
+
+void DisplayDriverTFT::drawDebugTouch(int x, int y) {
+    const int size = 20;
+    _tft.drawLine(x - size, y, x + size, y, TFT_RED);
+    _tft.drawLine(x, y - size, x, y + size, TFT_RED);
+}

boards/esp32-32e/DisplayDriverTFT.h

@@ -22,6 +22,9 @@ public:
     void setLabelFont() override;
     void setDefaultFont() override;
 
+    // Debug
+    void drawDebugTouch(int x, int y) override;
+
 private:
     void drawBoot(const ScreenState& st);
     void drawAlert(const ScreenState& st);