[Feature] Allow browsing EPG without creating bouquets

[antoniu200]

Describe the solution you'd like
I would like to be able to see the EPG for all TV channels, without having to add every single one of them into a bouquet. This is annoying when the provider has 264 channels.
Just like the "Television" list can be accessed without bouquets, by using the 3 dots in the corner and selecting "All Channels".

Basically, turn EPG's "Television" and "Radio" 3 dots menu options into subsections of the EPG section: have a "+" sign for the EPG section, just like for the "Remote" section and when the menu pops up, these two should appear.
For each of these two subsections, their own 3 dots menus should be made. Their options should maybe be identical to those in the "Television" and "Radio" list sections.

Describe alternatives you've considered

1. Simply add the "All Channels" option in the currently existing EPG menu. Pressing that should show all channels from both TV and Radio.
2. Add a way to add all (TV/Radio) channels into a bouquet with one click?