Pie chart too small
The pie is too small, it does not expand to take all available space:
http://demo5.0.tryton.org/#demo5.0/model/timesheet.work;context=%7B%22client%22%3A%22c028faf4-cf95-444c-8c01-2cd52cf5e5c0%22%2C%22company%22%3A1%2C%22language%22%3A%22en%22%2C%22groups%22%3A%5B5%2C6%2C1%2C4%2C2%2C3%2C15%2C16%2C7%2C13%2C12%2C14%2C19%2C18%2C20%2C21%2C17%2C9%2C8%2C10%2C11%5D%2C%22company_work_time%22%3A%7B%22d%22%3A28800%2C%22s%22%3A1%2C%22h%22%3A3600%2C%22m%22%3A60%2C%22M%22%3A576000%2C%22w%22%3A144000%2C%22Y%22%3A6912000%7D%2C%22language_direction%22%3A%22ltr%22%2C%22company.rec_name%22%3A%22Michael%20Scott%20Paper%20Company%22%2C%22employee%22%3Anull%2C%22context_model%22%3A%22timesheet.work.context%22%2C%22from_date%22%3Anull%2C%22to_date%22%3Anull%2C%22id%22%3A-1%7D&context_model=timesheet.work.context&name=%22Works%22&views=%5B328%2C329%5D