Added clementine alternate ico and index.theme modified

Signed-off-by: MishkaRogachev <mishkarogachev@gmail.com>
Added actions for open/close panels in Dolphin

Signed-off-by: MishkaRogachev <mishkarogachev@gmail.com>
added filter and show-hidden actions

Signed-off-by: MishkaRogachev <mishkarogachev@gmail.com>