Allow to open markdown files, graph and canvas in new tab as the default behavior.
Changes:
- Fix misbehaviors happening when only one file is open.
- Fix issue of graph views not executing properly.
- Fix issue preventing to write file name right away when creating a new file.
New features:
- Open images in new tab by default.
- Delay option: A delay was necessary to allow a better execution of the code. How much delay is applied is adjustable through an option slider.