Add 'Set Status' commands

[claremacrae]

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🔖 Feature description

The fork obsidian-tasks-x/src/Commands provides ToggleStatus commands, that allow users to run a command to set a task to a specific status, such as 'In Progress'.

A little work is needed before this is incorporated in to the obsidian-tasks code base:

• ToggleStatus.ts is almost entirely a copy of the pre-existing ToggleDone.ts
• But the ToggleDone.ts does not have some of the fixes made to the latest ToggleDone.ts in Tasks (like fixing issues with cursor position)

✔️ Solution

Consistency of code

• Review the differences between:
  • ToggleDone in Tasks
  • ToggleDone in Tasks-x
• Review the difference be
  • ToggleDone in Tasks-x
  • ToggleStatus in Tasks-x

At the end, there should be in Tasks the same sets of commands as in Tasks-x, but with the latest bug-fixes from Tasks, and without the copy-and-paste from Tasks-x.

Correctness of behaviour

Tasks-x then uses ToggleStatus to create the commands:

https://github.com/sytone/obsidian-tasks-x/blob/2c0b659457cc80806ff18585c955496c76861b87/src/Commands/index.ts#L31-L43

Note that it calls getSettings() to obtain the available statuses, and as explained in #1484 the settings do not store objects for TODO, IN_PROGRESS, DONE and CANCELLED - and so commands are not created for this.

It should instead get the available statuses from the StatusRegistry's global instance.

❓ Alternatives

No response

📝 Additional Context

No response

[claremacrae]

Until this feature is implemented, the UI features to allow the user to enable commands should be hidden. This is the subject of https://github.com/obsidian-tasks-group/obsidian-tasks/issues/1487.

Part of fixing this issue is reverting the PR that implemented https://github.com/obsidian-tasks-group/obsidian-tasks/issues/1487.

[claremacrae]

I've renamed this to remove reference to tasks-x, as Tasks has its own more robust mechanism for this now, which is how the 'Change task status' context menu facility works:

https://publish.obsidian.md/tasks/Editing/Toggling+and+Editing+Statuses#'Change+task+status'+context+menu