Harvest: Wrap KonnectorModal with withKonnector HOC

[gregorylegarec]

For now KonnectorModal component requires a konnector props, fully fetched with its related triggers into konnector.triggers.data.

It implies that the calling application must fetch konnector and its triggers before rendering a KonnectorModal.

I think we should wrap the KonnectorModal with a withKonnector HOC, in charge of fetching everything is needed (konnector, triggers, but also related accounts) before injecting it into KonnectorModal. We could then call the KonnectorModal this way:

<KonnectorModal slug="trainline" />