Describe the bug
After submitting a feed description with HTML special characters, those characters show up as HTML entities, e.g. & and >. I would guess there's a double escape happening somewhere.

To Reproduce
Steps to reproduce the behavior:

1. Open the config for any feed
2. Add special characters to its description, e.g. & or >
3. Submit changes
4. Description now contains HTML entities

Expected behavior
Description does not escape special characters.

Screenshots

Environment information (please complete the following information):

• Device: OnePlus 6
• OS: Android 11
• Browser: Bromite 108
• FreshRSS version: edge [ecd956c]
• Database version: PostgreSQL 13.9
• PHP version: PHP 7.4
• Installation type: Self-hosted [Debian 11.6]

Additional context
The screenshot I posted is from an HTML+XPath feed but the same happens for ordinary feeds.