Messages with markdown are displayed differently between Android and web apps

### Steps to reproduce

When I type "15. April" in the webapp on Firefox and send:
- my own screen still shows "15. April".
- the recipient on Android-App 1.3.9, Matrix-SDK: 1.3.9, OLM: 3.2.4. sees "1. April"
- the recepient on Chrome 96.0.4664 sees "15. April".

When I type "15. April" in the webapp on Chrome
- same result, only the Android-App shows "1. April" (independent of the Markdown 'on' or 'of' on Android)

When I type "15. April" on Android-App with activated Markdown
- only the Android-App shows "1. April"
- Chrome or Firefox are showing "15. April"

### Outcome

OK, I learned that is Markdown. But all screens should show the same.

### Operating system

Linux q4os-desktop 4.19.0-18-amd64 vector-im/element-web#1 SMP Debian 4.19.208-1 (2021-09-29) x86_64 GNU/Linux

### Browser information

87.0 (64-Bit)

### URL for webapp

https://app.element.io

### Application version

Element: 1.9.8 Olm: 3.2.8

### Homeserver

matrix.org

### Will you send logs?

No

No source file, test, or entry point is named. Start by reproducing the "15. April" case with Markdown enabled in the web and Android clients, then trace their message-rendering paths; done means both clients display the same text consistently.

Written by the indexing model from the issue text.