## Image feature
* Images should be loaded.
* Hovering over image should apply yellow outline.
* Clicking on image should apply blue outline which should not change when hovering over.
### Deleting
* Click image and press delete (forward delete on Mac) - empty paragraph should be created in place of image.
* Click image and press backspace (delete on Mac) - empty paragraph should be created in place of image.
* Place selection at the end of the first paragraph and press delete (forward delete on Mac) - image should be selected. Second press should delete it.
* Place selection at the beginning of the second paragraph and press backspace (delete on Mac) - image should be selected. Second press should delete it.
* Place selection in an empty paragraph before image and press delete (forward delete on Mac) - image should be selected and paragraph removed.
* Place selection in an empty paragraph after image and press backspace (delete on Mac) - image should be selected and paragraph removed.
### Arrow key handling
* Click first image and press right arrow - second image should be selected. Same effect should happen for down arrow.
* Click second image and press left arrow - first image should be selected. Same effect should happen for up arrow.
* Place selection at the end of the first paragraph and press right arrow - third image should be selected. Same effect should happen for down arrow.
* Place selection at the beginning of the first paragraph and press left arrow - first image should be selected. Same effect should happen for up arrow.