Three high school graduation parties, trash collection and beach sweeps in Bolinas, free bus transportation for low-income families to the Bay Area Discovery Museum in Sausalito and workshops on safe mountain biking on trails with hikers and horses are some of the projects being supported through discretionary funds Supervisor Steve Kinsey and the rest of the board approved for community service projects at the end of last month. With grants ranging from $1,000 to $5,000,…