[BUG] Category names with spaces show up with %20% in the reader mode

[DeepanshKhurana]

Bug Report

Describe the bug
In the reader mode, a phrase like "mental models" will display as "mental%20%models". This does not occur in other places and is handled correctly.

To Reproduce
Steps to reproduce the behavior:

1. Use a category with space in its name
2. Deploy to check the reader mode
3. The category name will have %20% in it

Expected behavior
The name should be cleaned before displaying.

Screenshots
N/A

Additional context
N/A

[DeepanshKhurana]

Closed with v1.4.5.