Move battery status on home screen to top left (#253)

So it doesn't look so lost on a row on its own.

Also sligthly (1px) moved symbol in on reader view.

src/activities/home/HomeActivity.cpp

@@ -332,7 +332,8 @@ void HomeActivity::render() const {
   const auto labels = mappedInput.mapLabels("", "Confirm", "Up", "Down");
   renderer.drawButtonHints(UI_10_FONT_ID, labels.btn1, labels.btn2, labels.btn3, labels.btn4);
 
-  ScreenComponents::drawBattery(renderer, 20, pageHeight - 70);
+  const auto batteryX = pageWidth - 25 - renderer.getTextWidth(SMALL_FONT_ID, "100 %");
+  ScreenComponents::drawBattery(renderer, batteryX, 10);
 
   renderer.displayBuffer();
 }

src/activities/reader/EpubReaderActivity.cpp

@@ -437,7 +437,7 @@ void EpubReaderActivity::renderStatusBar(const int orientedMarginRight, const in
   }
 
   if (showBattery) {
-    ScreenComponents::drawBattery(renderer, orientedMarginLeft, textY);
+    ScreenComponents::drawBattery(renderer, orientedMarginLeft + 1, textY);
   }
 
   if (showChapterTitle) {