desktop: disable battery on touch menu and reader footer

isDesktop and isEmulator are now different entities

frontend/apps/reader/modules/readerfont.lua

@@ -51,7 +51,7 @@ function ReaderFont:init()
     end
     -- build face_table for menu
     self.face_table = {}
-    if Device:isAndroid() or Device:isDesktop() then
+    if Device:isAndroid() or Device:isDesktop() or Device:isEmulator() then
         table.insert(self.face_table, require("ui/elements/font_settings"):getMenuTable())
     end
     local face_list = cre.getFontFaces()

frontend/apps/reader/modules/readerfooter.lua

@@ -336,6 +336,9 @@ function ReaderFooter:init()
     if not Device:hasFrontlight() then
         MODE.frontlight = nil
     end
+    if Device:isDesktop() then
+        MODE.battery = nil
+    end
     for k, v in pairs(MODE) do
         mode_tbl[v] = k
     end