• feat(ui): scope for head-* slots should contain "disabled"
• fix(ui): prevent unintended "current" day when "current weekday"
• feat(timestamp): new currentWeekday key corresponds to current weekday
• feat(month): include "disabled" key in scope object
• fix(month): computed "todayWeek" should contain correct "currentWeekday"

The Timestamp object has been changed to include currentWeekday. This affects any calendars, like QCalendarMonth that has a header. The currentWeekday will be set to true, if the current day's (as defined by now, and defaults to today's date unless explicitly set) day of the week matches the headers day of the week,

/**
 * @typedef {Object} Timestamp The Timestamp object
 * @property {string=} Timestamp.date Date string in format 'YYYY-MM-DD'
 * @property {string=} Timestamp.time Time string in format 'HH:MM'
 * @property {number} Timestamp.year The numeric year
 * @property {number} Timestamp.month The numeric month (Jan = 1, ...)
 * @property {number} Timestamp.day The numeric day
 * @property {number} Timestamp.weekday The numeric weekday (Sun = 0, ..., Sat = 6)
 * @property {number=} Timestamp.hour The numeric hour
 * @property {number} Timestamp.minute The numeric minute
 * @property {number=} Timestamp.doy The numeric day of the year (doy)
 * @property {number=} Timestamp.workweek The numeric workweek
 * @property {boolean} Timestamp.hasDay True if Timestamp.date is filled in and usable
 * @property {boolean} Timestamp.hasTime True if Timestamp.time is filled in and usable
 * @property {boolean=} Timestamp.past True if the Timestamp is in the past
 * @property {boolean=} Timestamp.current True if Timestamp is current day (now)
 * @property {boolean=} Timestamp.future True if Timestamp is in the future
 * @property {boolean=} Timestamp.disabled True if this is a disabled date
 * @property {boolean=} Timestamp.currentWeekday True if this date corresponds to current weekday
 */
export const Timestamp = {
  date: '',        // YYYY-MM-DD
  time: '',        // HH:MM (optional)
  year: 0,         // YYYY
  month: 0,        // MM (Jan = 1, etc)
  day: 0,          // day of the month
  weekday: 0,      // week day (0=Sunday...6=Saturday)
  hour: 0,         // 24-hr format
  minute: 0,       // mm
  doy: 0,          // day of year
  workweek: 0,     // workweek number
  hasDay: false,   // if this timestamp is supposed to have a date
  hasTime: false,  // if this timestamp is supposed to have a time
  past: false,     // if timestamp is in the past (based on `now` property)
  current: false,  // if timestamp is current date (based on `now` property)
  future: false,   // if timestamp is in the future (based on `now` property)
  disabled: false, // if timestamp is disabled
  currentWeekday: false // if this date corresponds to current weekday 
}