Issue-159: Fatal on front end when trending is set as source but parsely not setup

[mogmarsh]

Fixes Issue

#159 - Fatal on front end when trending is set as source but parsely not setup

I will add the version bump and changelog shortly.

Description of the Change

• Viewing a Query block that has trending set for the source results in an error on the front end if parsely is not set up.

Steps To Reproduce

1. Set up a Query block and in the code view set orderby to trending

<!-- wp:wp-curate/query {"deduplication":"never","numberOfPosts":4,"posts":[null,null,null,null],"orderby":"trending"} -->
<div class="wp-block-wp-curate-query"><!-- wp:post-template -->
<!-- wp:wp-curate/post -->
<div class="wp-block-wp-curate-post"><!-- wp:columns {"isStackedOnMobile":false} -->
<div class="wp-block-columns is-not-stacked-on-mobile"><!-- wp:column {"width":"60%"} -->
<div class="wp-block-column" style="flex-basis:60%"><!-- wp:post-title {"level":3,"isLink":true} /-->

<!-- wp:group {"style":{"spacing":{"blockGap":"0"}},"layout":{"type":"flex","flexWrap":"wrap"}} -->
<div class="wp-block-group"><!-- wp:post-date {"format":"M j, Y g:i A", "timediff": true} /-->

<!-- wp:mediaco/primary-term {"isLink":false} /--></div>
<!-- /wp:group --></div>
<!-- /wp:column -->

<!-- wp:column {"width":"40%"} -->
<div class="wp-block-column" style="flex-basis:40%"><!-- wp:post-featured-image {"isLink":true,"aspectRatio":"16/9","style":{"layout":{"selfStretch":"fixed","flexSize":"50%"}}} /--></div>
<!-- /wp:column --></div>
<!-- /wp:columns --></div>
<!-- /wp:wp-curate/post -->
<!-- /wp:post-template --></div>
<!-- /wp:wp-curate/query -->

2. Make sure parsely is not configured.
3. View it on the front end.

Additional Information

No response

[attackant]

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