Populate shipyard queue on resources page for solar satellites

[lanedirt]

Fixes:

• 457

Remaining todo's:

• [x] When solar satellite are building, when one unit is done the actual unit count is not updated on the resources page. This does work when building units from shipyard/defense page. Check what is missing to make this work. --> class where count is shown should be "amount" for unit objects instead of "level".

[lanedirt]

Will close #457 and fixes additional bugs reported in #405