Show an error message if there are any spaces in the global filter

[echoleaf]

⚠️ Check request is valid.

• My request is about the Tasks plugin for Obsidian.
• I am only requesting a single feature in the Tasks plugin. Multiple changes should be split into individual requests, with links between them.
• I believe my requested feature will be generally applicable to other Tasks plugin users, not just me: it is not uniquely tied to my personal workflow.

⚠️ Please check that this feature request hasn't been suggested before.

• I searched previous Tasks plugin Ideas in Discussions didn't find any similar feature requests.
• I searched previous Tasks plugin Issues didn't find any similar feature requests.

🔖 Feature description

When adding a tag to the global filter, an error message should appear if there are any empty spaces in the field.

✔️ Solution

When adding a tag to the global filter field that includes one or more empty spaces, a modal popup should appear to notify the user about the error.

❓ Alternatives

No response

📝 Additional Context

I had problems with task queries because I did not realize that I entered the tag for the global filter with a space before and after the tag:

As a result, task queries would only recognize the global filter if it wasn't the first word in a task (ie missing the space before) or the last word in a task (ie missing the space after).

[claremacrae]

Super - thanks for picking up my request to log this.

Just to note that the spaces problem was identified using the explain instruction, as shown here: