What are the key highlights and achievements mentioned in the Board of Management's report to the school community for June 2021? Were there any significant developments or changes in the school during this period? Did the report cover any updates related to academic performance, extracurricular activities, or school infrastructure? Were there any challenges or areas for improvement addressed in the report, and what measures are being taken to address them? How does the Board of Management plan to engage and collaborate with the school community moving forward?