[RTE] Unable to insert new line before and after some elements

[NatalliaAlieva]

Description

It's not possible to insert an empty row before or after tables/media/files.

Case #1 - New line "before"

Steps to Reproduce

1. Open RTE component
2. Delete all default text.
3. Select "add table" option on the sticky toolbar.
4. Try to add a new line before pasted table.

Actual result

There is no way to add a new line before pasted table.

https://user-images.githubusercontent.com/57751283/176973150-5c700e4b-ec1a-4002-8c31-1578f17fc275.mp4

Expected result

System allows to add a new line before pasted table.

Note

The same situation for pasted files, pictures, video, splitter. Below is a video example.

https://user-images.githubusercontent.com/57751283/176974310-6370caa0-687e-4e4e-931f-d354b3d92799.mp4

Case #2 - New line "after"

Steps to Reproduce

1. Open RTE component
2. Delete all default text.
3. Select "add table" option on the sticky toolbar.
4. Try to add a new line after pasted table.

Actual result

There is no way to add a new line after pasted table.

Expected result

System allows to add a new line after pasted table.