Add cursor blink setting and replicate cursor shape to remote collaborators

assets/settings/default.json

@@ -69,6 +69,8 @@
     // The column at which to soft-wrap lines, for buffers where soft-wrap
     // is enabled.
     "preferred_line_length": 80,
+    // Whether the cursor blinks in the editor.
+    "cursor_blink": true,
     // Whether to indent lines using tab characters, as opposed to multiple
     // spaces.
     "hard_tabs": false,