Photo: Wu Wa /YouTube Tesla plans to increase parts production at Giga Shanghai, show new documents filed with the city government. The manufacturer wants to add production workshops and increase the number of employees. Tesla has again been active in increasing the production capacity of Giga Shanghai. According to documents filed with the city government on Tuesday, the factory plans to expand parts production to meet growing export demand, Reuters said. This comes amid a delay in obtaining final approval for the construction of Giga Berlin, which was supposed to meet the needs of the European market. Although the European…