Fixed missing icons, fixed bug where focus was lost on send

...hku/quasseldroid_ng/ui/chat/util/SlidingPanelHandler.java

app/src/main/res/drawable-hdpi/ic_delete_dark.png

app/src/main/res/drawable-hdpi/ic_delete_light.png

app/src/main/res/drawable-hdpi/ic_pencil_dark.png

app/src/main/res/drawable-hdpi/ic_pencil_light.png

app/src/main/res/drawable-mdpi/ic_delete_dark.png

app/src/main/res/drawable-mdpi/ic_delete_light.png

app/src/main/res/drawable-mdpi/ic_pencil_dark.png

app/src/main/res/drawable-mdpi/ic_pencil_light.png

app/src/main/res/drawable-xhdpi/ic_delete_dark.png

app/src/main/res/drawable-xhdpi/ic_delete_light.png

app/src/main/res/drawable-xhdpi/ic_pencil_dark.png

app/src/main/res/drawable-xhdpi/ic_pencil_light.png

app/src/main/res/drawable-xxhdpi/ic_delete_dark.png

app/src/main/res/drawable-xxhdpi/ic_delete_light.png

app/src/main/res/drawable-xxhdpi/ic_pencil_dark.png

app/src/main/res/drawable-xxhdpi/ic_pencil_light.png

app/src/main/res/drawable-xxxhdpi/ic_delete_dark.png

app/src/main/res/drawable-xxxhdpi/ic_delete_light.png

app/src/main/res/drawable-xxxhdpi/ic_pencil_dark.png