Change how the plugin works for detecting completed tasks

[tu2-atmanand]

How the plugin works

• The plugin tries to look out for a completion date property in the task.
  For example, if say your task looks like this :

- [ ] The task title |  ✅ 2025-01-09

Then this task will be considered as done. Because, it has a completion date value.

Here, you have to note that, you will be required to use the fixed emojis. Or fixed formats as per the option you have selected for this setting : Due and completion date formats. Also check out the Metadata Formats.

Planned changes

After giving a proper thought to this approach, I realized that, this is not a correct way to handle the completion of tasks. I actually used the current approach, because, whenever you checkmark a task, the completion date value will be added to that task, even when if you are using tasks plugin. But then I realized that, few users might not be using this completion date value and might be simply using the checkbox itself to indicate the completion of the task.

So, this working will be changed in the next release v1.3.0 . Where only when you will click on the checkbox, to convert it from - [ ] to - [x], then only the task will be considered as completed.

Originally posted by @tu2-atmanand in #107 (comment)

[tu2-atmanand]

I think the best way to implement this functionality, is by keeping the status of the task as a new property. And this status property is very much required, as I am going to implement this feature : #46

Hence, this issue will be dependent on that FR. Proceed with the FR implementation.