feat(todo): Today, Upcoming, Inbox, projects, quick add and the task sheet (ADR 0033, D8, D9)

The tabs hold the person's tasks: Today what is overdue (Reschedule
moving it all to a day, times kept) and what is due today; Upcoming the
overdue ones and the next four weeks day by day; Inbox and each
project's screen from Browse the tasks above and in their sections, done
ones on asking; Browse the projects with their open counts and the
labels. A task's row shows its check in its priority's colour, its date
in the colour of how near it is, its deadline, its sub-tasks done and
its labels; quick add takes its title, date, priority, project, labels
and description and stays for the next; its sheet edits all of it, adds
sub-tasks and deletes it with them after asking. Colours are the
palette's, cerise for overdue and P1 against the strawberry wash.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Signed-off-by: Tizian 「ティツィアーン」 <raisondetredev@pm.me>

apps/todo/halkyon_todo_flutter/lib/l10n/app_en.arb

@@ -17,12 +17,96 @@
   "shellTabUpcoming": "Upcoming",
   "shellTabInbox": "Inbox",
   "shellTabBrowse": "Browse",
-  "todayLaterTitle": "Today's tasks come here",
-  "upcomingLaterTitle": "The days ahead come here",
-  "inboxLaterTitle": "Tasks without a project come here",
-  "browseLaterTitle": "Your projects and labels come here",
-  "tasksLaterHint": "Tasks come with a later version of Halkyon Todo.",
   "settingsTitle": "Settings",
   "settingsVersion": "Version {version} (build {build})",
-  "@settingsVersion": {"placeholders": {"version": {"type": "String"}, "build": {"type": "String"}}}
+  "@settingsVersion": {"placeholders": {"version": {"type": "String"}, "build": {"type": "String"}}},
+
+  "clear": "Clear",
+  "colorLabel": "Colour",
+  "completedShow": "Show done tasks",
+  "completedHide": "Hide done tasks",
+  "dateTitle": "Date",
+  "dateNextWeek": "Next week",
+  "dateWeekend": "This weekend",
+  "datePick": "Pick a day",
+  "dateTime": "Time",
+  "dateNone": "No date",
+  "dateNoneYet": "No date",
+  "dayToday": "Today",
+  "dayTomorrow": "Tomorrow",
+  "dayYesterday": "Yesterday",
+  "dayHeadingNamed": "{date} · {name}",
+  "@dayHeadingNamed": {"placeholders": {"date": {"type": "String"}, "name": {"type": "String"}}},
+  "deadlineOn": "Deadline {day}",
+  "@deadlineOn": {"placeholders": {"day": {"type": "String"}}},
+  "deadlineNone": "No deadline",
+  "keysMissing": "This device can't save: it doesn't hold your account's keys. Sign in with your password or recovery phrase to add them.",
+  "labelsTitle": "Labels",
+  "labelsNone": "No labels yet.",
+  "labelsNoneSet": "No labels",
+  "labelsCount": "{count, plural, =1{1 label} other{{count} labels}}",
+  "@labelsCount": {"placeholders": {"count": {"type": "int"}}},
+  "labelAdd": "New label",
+  "labelEdit": "Edit label",
+  "labelDelete": "Delete label",
+  "labelDeleteTitle": "Delete the label?",
+  "labelDeleteMessage": "\"{name}\" is taken off every task that has it.",
+  "@labelDeleteMessage": {"placeholders": {"name": {"type": "String"}}},
+  "nameLabel": "Name",
+  "save": "Save",
+  "overdue": "Overdue",
+  "reschedule": "Reschedule",
+  "priorityTitle": "Priority",
+  "priority1": "Priority 1",
+  "priority2": "Priority 2",
+  "priority3": "Priority 3",
+  "priority4": "No priority",
+  "projectsTitle": "Projects",
+  "projectsNone": "No projects of your own yet.",
+  "projectAdd": "New project",
+  "projectEdit": "Edit project",
+  "projectDelete": "Delete project",
+  "projectDeleteTitle": "Delete the project?",
+  "projectDeleteMessage": "\"{name}\" is deleted with its sections and tasks, on all your devices.",
+  "@projectDeleteMessage": {"placeholders": {"name": {"type": "String"}}},
+  "projectEmptyTitle": "Nothing to do here",
+  "projectEmptyHint": "Add a task with the + button.",
+  "projectGone": "This project was deleted.",
+  "projectMenu": "More",
+  "projectPickTitle": "Project",
+  "sectionAdd": "New section",
+  "sectionEdit": "Rename section",
+  "sectionDelete": "Delete section",
+  "sectionDeleteTitle": "Delete the section?",
+  "sectionDeleteMessage": "\"{name}\" is deleted with its tasks.",
+  "@sectionDeleteMessage": {"placeholders": {"name": {"type": "String"}}},
+  "sectionMenu": "Section",
+  "subTasks": "Sub-tasks",
+  "subTasksDone": "Sub-tasks {done}/{count}",
+  "@subTasksDone": {"placeholders": {"done": {"type": "int"}, "count": {"type": "int"}}},
+  "subTaskAdd": "Add sub-task",
+  "taskTitle": "Task",
+  "taskAddTitle": "Add task",
+  "taskAdd": "Add",
+  "taskAddOn": "Add a task on {day}",
+  "@taskAddOn": {"placeholders": {"day": {"type": "String"}}},
+  "taskTitleHint": "What's to be done?",
+  "taskDescription": "Description",
+  "taskDescriptionHint": "Description",
+  "taskComplete": "Mark as done",
+  "taskReopen": "Mark as not done",
+  "taskCompleted": "Task done",
+  "taskDelete": "Delete task",
+  "taskDeleteTitle": "Delete the task?",
+  "taskDeleteMessage": "\"{title}\" is deleted on all your devices.",
+  "@taskDeleteMessage": {"placeholders": {"title": {"type": "String"}}},
+  "taskDeleteWithSubTasks": "\"{title}\" is deleted with its {count, plural, =1{sub-task} other{{count} sub-tasks}}, on all your devices.",
+  "@taskDeleteWithSubTasks": {"placeholders": {"title": {"type": "String"}, "count": {"type": "int"}}},
+  "taskGone": "This task was deleted.",
+  "todayEmptyTitle": "Nothing due today",
+  "todayEmptyHint": "Tasks dated today, and those overdue, show here.",
+  "lockedRows": "{count, plural, =1{1 item doesn't open on this device.} other{{count} items don't open on this device.}}",
+  "@lockedRows": {"placeholders": {"count": {"type": "int"}}},
+  "inboxMissingTitle": "No Inbox yet",
+  "inboxMissingHint": "Your Inbox comes with the next sync, or once this device holds your account's keys."
 }