`lsp-avy-lens': don't error if no lens is selected (#2337)

`avy-process' can return nil if the user cancels (e.g. by pressing ESC).
In that case, `funcall-interactively' calling the result would throw an
error. Guard the `funcall-interactively', removing the error.

The relevant part in `avy-process' is "(eq res 'abort) nil".

Author: nbfalcon

lsp-lens.el

@@ -408,7 +408,7 @@ CALLBACK - callback for the lenses."
                        (--map (overlay-put it 'before-string
                                            (overlay-get it 'lsp-original))
                               lsp-lens--overlays))))))
-      (funcall-interactively action))))
+      (when action (funcall-interactively action)))))
 
 (provide 'lsp-lens)
 ;;; lsp-lens.el ends here