Make manifest files pass validation

[StanIwan]

Modifies manifest files to conform to validation rules that Screenly/cli#111 introduces.

[sergey-borovkov]

Let's add entrypoint: index.html everywhere

[nicomiguelino]

Looks good to me

[nicomiguelino]

@sergey-borovkov, @StanIwan, @korvyashka
It seems that running screenly edge-app upload doesn't work on a newly-created Edge App.

Here's a sample console output:

2023-09-18T17:59:11.890Z DEBUG [reqwest::connect] starting new connection: https://api.screenlyapp.com/
2023-09-18T17:59:11.890Z DEBUG [hyper::client::connect::dns] resolving host="api.screenlyapp.com"
2023-09-18T17:59:11.892Z DEBUG [hyper::client::connect::http] connecting to 104.18.29.52:443
2023-09-18T17:59:11.914Z DEBUG [hyper::client::connect::http] connected to 104.18.29.52:443
2023-09-18T17:59:11.945Z DEBUG [hyper::proto::h1::io] flushed 549 bytes
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::io] parsed 10 headers
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::conn] incoming body is chunked encoding
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::decode] incoming chunked header: 0x42 (66 bytes)
2023-09-18T17:59:12.181Z DEBUG [hyper::proto::h1::conn] incoming body completed
2023-09-18T17:59:12.181Z DEBUG [hyper::client::pool] pooling idle connection for ("https", api.screenlyapp.com)
2023-09-18T17:59:12.182Z DEBUG [screenly::commands] Response: "{\"error\": \"Field 'entrypoint' doesn't exist.\", \"code\": \"PGRST118\"}"
Failed to upload edge app: unknown error: 400.

[sergey-borovkov]

@sergey-borovkov, @StanIwan, @korvyashka It seems that running screenly edge-app upload doesn't work on a newly-created Edge App.

Here's a sample console output:

2023-09-18T17:59:11.890Z DEBUG [reqwest::connect] starting new connection: https://api.screenlyapp.com/
2023-09-18T17:59:11.890Z DEBUG [hyper::client::connect::dns] resolving host="api.screenlyapp.com"
2023-09-18T17:59:11.892Z DEBUG [hyper::client::connect::http] connecting to 104.18.29.52:443
2023-09-18T17:59:11.914Z DEBUG [hyper::client::connect::http] connected to 104.18.29.52:443
2023-09-18T17:59:11.945Z DEBUG [hyper::proto::h1::io] flushed 549 bytes
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::io] parsed 10 headers
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::conn] incoming body is chunked encoding
2023-09-18T17:59:12.180Z DEBUG [hyper::proto::h1::decode] incoming chunked header: 0x42 (66 bytes)
2023-09-18T17:59:12.181Z DEBUG [hyper::proto::h1::conn] incoming body completed
2023-09-18T17:59:12.181Z DEBUG [hyper::client::pool] pooling idle connection for ("https", api.screenlyapp.com)
2023-09-18T17:59:12.182Z DEBUG [screenly::commands] Response: "{\"error\": \"Field 'entrypoint' doesn't exist.\", \"code\": \"PGRST118\"}"
Failed to upload edge app: unknown error: 400.

You need @rusko124 or @korvyashka to deploy those backend changes.

[StanIwan]

I've seen that this PR https://github.com/Screenly/Screenly/pull/391 is now merged to master, so we can merge this.

@sergey-borovkov, please review :)