Double new lines don't end up in a paragraph

See this comment below for more up-to-date information: https://github.com/vector-im/element-android/issues/1237#issuecomment-817328230
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**Problem**
When I write a message on RiotX and use double new lines in my message, I don't get paragraphs in the posted text.

**Actual result**
Just one new line.

**Expected result**
I am expecting to see a small space between the paragraphs.

**Repro steps**
* Write this message:

Paragraph 1

Paragraph 2

* Send it
* See the rendered/posted text, it looks like this:

Paragraph 1
Paragraph 2