Small tweaks

Hi. Excellent software. Some inputs:

1. The default compose file should use an environment var for TZ and volumes for the other. The ports also needs to be declared. As regards to the license - what about requesting to this when first time visiting the browser gui?

version: '3.8'

services:

obscreen:

image: obscreen/obscreen:latest

container_name: obscreen

restart: always

volumes:

- /etc/localtime:/etc/localtime:ro

- obscreen_lic:/app

- data:/app/data

networks:

- whatever

ports:

- "5000:5000"

environment:

PORT: 5000

SECRET_KEY: ANY_SECRET_KEY_HERE

volumes:

obscreen_lic:

driver: local

data:

driver: local

networks:

whatever:

external: true

2. On the playlist loop the “Add slide” button need to demand som more attention. I am pressing “Add playlist” all the time. Blue background might be the answer.

3. When uploading content. In example - when chosen video and mp4 is the only viable option - only mp4 files should be possible to select.

4. A premade image for raspberry.

Thanks again for this very interesting software.