Make `cursor_location` a reactive attribute

I'm using a TextArea to create a fairly specific 'editor' Widget, and would like to constantly report to the user what the location of their cursor is (i.e., offset from the start of the line), like many editors do in the their footer.

Rather than polling the current value of cursor_location, it would be nice if this is a reactive attribute that I can watch for.

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You might instead watch the TextArea.selection which is a reactive attribute, or handle the SelectionChanged messages.

textual/src/textual/widgets/_text_area.py

Lines 1685 to 1691 in 0f62d13

    
               @property 
        
               def cursor_location(self) -> Location: 
        
                   """The current location of the cursor in the document. 
        
                   This is a utility for accessing the `end` of `TextArea.selection`. 
        
                   """ 
        
                   return self.selection.end

Excellent! That solved my issue perfectly.

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	@property
	def cursor_location(self) -> Location:
	"""The current location of the cursor in the document.

	This is a utility for accessing the `end` of `TextArea.selection`.
	"""
	return self.selection.end