74271 Return the existing DevTools server from DevToolsLauncher.serve if one is already running. (cla: yes, tool)

74272 Roll package:dds to 1.7.3 and add error handling for VM service disappearing (cla: yes, team, tool)

74273 Replaced uses of AppBarTheme.color with AppBarTheme.backgroundColor (cla: yes, f: material design, framework)

74280 Check VM service URI is valid before attempting to start DDS (Re-upload #73998) (cla: yes, tool, waiting for tree to go green)

74285 Pass only Uri to package:http APIs (cla: yes, team, tool, waiting for tree to go green)

74286 Material Desktop Context Menu (cla: yes, f: cupertino, f: material design, framework)