Timeline.Item alignment

[mathiasbosman]

Describe the bug
The Timeline.Item component seems to be rendering wrong:

To Reproduce
Steps to reproduce the behavior:

1. Implement the Timeline and include a timeline item (for example as shown in the docs)
2. Observe result

Expected behavior
The item content should be aligned properly

Screenshots

Desktop:

• OS: [macOS]
• Browser [Safari]
• Version [14.1.2]

Additional context
As far as I can tell the display:flex; style is missing.
I created a pull request (#1403) but am not sure if done correctly. (first time contributing 😺)