thermostat: make text fit into Rpi screen

soft/thermostat/src/mainwindow.cpp

@@ -70,7 +70,7 @@ MainWindow::MainWindow(QWidget *parent) :
 						QSizePolicy::PushButton);
 
 	QFont font = menu_btn->font();
-	font.setPointSize(18);
+	font.setPointSize(12);
 	menu_btn->setFont(font);
 	m_state_btn.setFont(font);
 

soft/thermostat/src/menu_dlg.cpp

@@ -49,7 +49,7 @@ MenuDlg::MenuDlg(QWidget *parent, Qt::WindowFlags f) :
 	back_btn->setSizePolicy(*szPolicy);
 
 	QFont font = holiday_btn->font();
-	font.setPointSize(18);
+	font.setPointSize(12);
 	holiday_btn->setFont(font);
 	save_cfg_btn->setFont(font);
 	load_cfg_btn->setFont(font);

soft/thermostat/src/zoneitem.cpp

@@ -22,7 +22,7 @@ ZoneItem::ZoneItem(const QString &zoneName, QWidget *parent, Qt::WindowFlags f)
 	m_heating_on = false;
 
 	QFont font = this->font();
-	font.setPointSize(18);
+	font.setPointSize(12);
 	this->setFont(font);
 
 	this->setText(zoneName);
@@ -56,7 +56,7 @@ void ZoneItem::refresh(void)
 	QString text;
 
 	/* Zone name */
-	text += QString("<center><b>") + m_name + QString("</b></center><br/>");
+	text += QString("<center><b>") + m_name + QString("</b></center>");
 
 	/* Temperature */
 	text += QString("<center><b>");
@@ -81,7 +81,7 @@ void ZoneItem::refresh(void)
 		text += QString::number(m_target_temperature);
 	}
 	text += QString("°C").toHtmlEscaped();
-	text += QString("</b></center><br/>");
+	text += QString("</b></center>");
 
 	/* hygrometry */
 	text += QString("<center><b>");