Tapping the empty space below the blocks inserts a paragraph block at the begging

[antonis]

Describe the bug
When tapping on the empty space below the blocks a new paragraph block is inserted at the begging

To Reproduce
Steps to reproduce the behavior:

1. Create a paragraph with some content
2. Tap on empty space below the paragraph
3. Notice that a new paragraph block is inserted at the begging

Expected behavior
When tapping on the empty space below the blocks a new paragraph block is inserted at the end

Screenshots

Smartphone (please complete the following information):

• Device: iPhone SE 2020
• OS: iOS 14.2
• Version v1.47.0-alpha1

Additional context
The issue seems to be related with the changes introduced in this PR and specifically with the changed position of this line.