[TIMOB-28301] Android: Use the material DayNight theme by default

*Summary:* As of Titanium 9.3.0, apps use the Theme.MaterialComponents.Bridge by default. We should change it to Theme.MaterialComponents.DayNight.DarkActionBar. *Reason:* This would allow us to support Android 10's light/dark mode feature. A Titanium app would then be able to change between the 2 modes dynamically. https://developer.android.com/guide/topics/ui/look-and-feel/darktheme *New Titanium Themes:* The following themes support dynamic switching between Day/Night (ie: Light/Dark) themes. Note that OS versions older than Android 10 will use the Day (ie: Light) theme by default. * Theme.Titanium.DayNight // This is the default. * Theme.Titanium.DayNight.NoTitleBar * Theme.Titanium.DayNight.Fullscreen Titanium Dark-only themes. * Theme.Titanium.Dark * Theme.Titanium.Dark.NoTitleBar * Theme.Titanium.Dark.Fullscreen Titanium Light-only themes. * Theme.Titanium.Light * Theme.Titanium.Light.NoTitleBar * Theme.Titanium.Light.Fullscreen The above themes can be applied the AndroidManifest.xml <application/> element and/or to an Ti.UI.Window via its creation-only "theme" property. Titanium will assign the "Theme.Titanium.DayNight" to the application by default unless overriden in the "tiapp.xml" via the <applicaiton/> element. The above Dark and Light themes are for app developers who want to opt-out of Light/Dark theme switching. This is especially useful for apps which hard-code colors. *New AppDerived Themes:* The following themes will be derived from the theme assigned to the AndroidManifest.xml <application/> element. If you do not set a custom theme there, then they will derive from the default Theme.Titanium.DayNight. These themes are intended to be passed to a Ti.UI.Window/Ti.UI.TabGroup "theme" property when wanting to remove the titlebar, show the window fullscreen, etc. and maintain the current app theme. * Theme.AppDerived.NoTitleBar * Theme.AppDerived.Fullscreen * Theme.AppDerived.Translucent * Theme.AppDerived.Translucent.NoTitleBar * Theme.AppDerived.Translucent.Fullscreen *Deprecated Themes:* The following themes are also deprecated, but will still work. These themes have been replaced by the above mentioned Theme.AppDerived.\* themes. * Theme.Titanium.NoTitleBar * Theme.Titanium.Fullscreen * Theme.Titanium.Translucent * Theme.Titanium.Translucent.NoTitleBar * Theme.Titanium.Translucent.Fullscreen Do not use the following themes. These may cause errors or exceptions with the new material widgets that Titanium 10.0.0 uses. Custom themes must derive from Theme.MaterialComponents.\*, but not the Bridge derived material themes. * Theme.AppCompat.\* * Theme.MaterialComponents.Bridge.\* *Breaking-Change:* This means we would be dropping the old "holo dark" theme as shown below. https://developer.android.com/guide/topics/ui/look-and-feel/themes We would end up using Google's modern material design theme where the "light" theme uses a white background instead of the old dark gray background.