[Android] Increase defaule font size but set it globally

- calculate bigger factor from screen density
- but force to use such a pixel size for entire app

src/libs/core/tnootkaqml.cpp

@@ -354,7 +354,7 @@ qreal TnootkaQML::lightness(const QColor& c) const {
 int TnootkaQML::factor() {
 #if defined (Q_OS_ANDROID)
   // Set Android font according to screen size/density
-  return qRound(Tmtr::fingerPixels() * 0.3 * GLOB->guiScale());
+  return qRound(Tmtr::fingerPixels() * 0.35 * GLOB->guiScale());
 #else
   // but use system font size on desktops
   return qRound(Tmtr::systemFont.pointSize() / 72.0 * qApp->primaryScreen()->logicalDotsPerInch() * GLOB->guiScale());

src/main.cpp

@@ -144,7 +144,7 @@ int main(int argc, char *argv[])
 
     auto f = a->font();
 #if defined (Q_OS_ANDROID)
-    f.setPixelSize(qRound(static_cast<qreal>(f.pixelSize()) * gl->guiScale()));
+    f.setPixelSize(nooObj->factor());
     auto pal = qApp->palette();
     pal.setColor(QPalette::Active, QPalette::Highlight, QColor(0, 160, 160)); // Teal color of highlight for Android
     pal.setColor(QPalette::Active, QPalette::Shadow, QColor(120, 120, 120)); // Dark gray for shadow