Remove default select option from dropdown

[ernilambar]

Fixes #343

[mukeshpanchal27]

Thanks @ernilambar for the PR. I like the idea to remove default empty selection. If we there is no plugin then it will show No plugins available. message.

I value the input from @felixarntz and @joemcgill on this matter.

[felixarntz]

Hmm, I'm not sure about this. The only benefit I could see here is if a site only has a single plugin and that's what you want to test. But otherwise I would find it an arbitrary choice to have the alphabetically first plugin pre-selected, so from that perspective I prefer the neutral default we have now.

How about this?

• If there's one plugin, we only put that plugin there and have it pre-selected.
• Otherwise, things remain as they are now.

I think that would be a good compromise that would address both concerns.

I don't feel strongly about it though, curious to hear other perspectives.

[mukeshpanchal27]

How about this?

• If there's one plugin, we only put that plugin there and have it pre-selected.
• Otherwise, things remain as they are now.

I personally like these suggestion.

[ernilambar]

PR updated as per the comment.

[mukeshpanchal27]

Thanks for the update @ernilambar. Left nit-pick other then look good to me.

[felixarntz]

Thanks @ernilambar!