BRAINERD — City staff in Brainerd are working on a proposal that could allow the Friends of the Brainerd Public Library to use the City Hall annex space to store used books. The City Council voted Monday, May 4, to have staff estimate the costs that would be associated with the nonprofit group using the first floor of the building, which currently sits vacant. Karen Johnson, president of the Friends of the Brainerd Public Library, spoke to the c…