VideoPlayer: Fix screen blanking prevention

The dbus mce API seems to only block screen blanking for a predefined
period of time. To keep screen lit we need to periodically ping it.
30 seconds seem to work fine. It's possible higher values would also
work.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
VideoPlayer: Synchronize closing of top and bottom panels.

This patch also prevents the user from closing the panels in portrait
mode where they are supposed to be always visible.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
Tweak new ytplayer icon

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
ChannelBrowser: Change video list label to "Latest videos"

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
Remame VideoList page to CategoryVideoList

New name better reflects the actual purose of the page.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
Fix video controls hiding on screen orientation chabge.

It seems that isLandscape/isPortrait is not not useful when used from
onOrientationChanged function.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
CategoryVideoList: Don't add new elements to the list during transiton

This improves the overall animation transition at the cost of showing
the contents a little bit later.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
VideoPlayer: Don't disconnect the player from video output

The idea was not to render vide when the page is in Inactive state. The
problem is this causes some weird bugs in the long run.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
Default cover: Use new logo

It'd be good to be able to use svg image for this purpose. Unfortunately
QML Image element on jolla doesn't seem to support svg images. Revisit
this once Jolla upgrades to Qt 5.2.

Signed-off-by: Peter Tworek <tworaz666@gmail.com>
Update TODO file

Signed-off-by: Peter Tworek <tworaz666@gmail.com>