Engine stats - brave.images

Engine name	Scores	Result count	Response time	Reliability
brave.images				0

Errors and exceptions

Exception	json.decoder.JSONDecodeError	Percentage	100
Parameter	Expecting value
Filename	searx/engines/brave.py:258
Function	response
Code	json_data = js_variable_to_python(datastr)

**Version of SearXNG, commit number if you are using on master branch and stipulate if you forked SearXNG**
<!-- If you are running on master branch using git execute this command
in order to fetch the latest commit ID:
```
git log -1
```
If you are using searxng-docker then look at the bottom of the SearXNG page
and check for the version after "Powered by SearXNG"

Please also stipulate if you are using a forked version of SearxNG and
include a link to the fork source code.
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**How did you install SearXNG?**

**What happened?**

**How To Reproduce**

**Expected behavior**

**Screenshots & Logs**

**Additional context**

**Technical report**

Error
  * Error: json.decoder.JSONDecodeError
  * Percentage: 100
  * Parameters: `('Expecting value',)`
  * File name: `searx/engines/brave.py:258`
  * Function: `response`
  * Code: `json_data = js_variable_to_python(datastr)`

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