You need to make Joomla template override for JS HelloMe.
Copy ...\modules\mod_community_hellome\tmpl\default.php
to
...\templates\YOUR_JOOMLA_TEMPLATE\html\mod_community_hellome\
Edit ...\templates\YOUR_JOOMLA_TEMPLATE\html\mod_community_hellome\default.php line 75 to look like:

<div class="joms-hcard__cover" onclick="location.href='<?php echo CUrlHelper::userLink($user->id); ?>';" style="cursor: pointer;">

onclick="location.href='<?php echo CUrlHelper::userLink($user->id); ?>';" style="cursor: pointer;"

<div class="joms-hcard__cover"

>

Since we have link for whole block we don't need one for avatar so we can remove that code.
Edit ...\templates\YOUR_JOOMLA_TEMPLATE\html\mod_community_hellome\default.php line 84 so it looks like:

<img src="<?php echo $user->getThumbAvatar(); ?>" alt="<?php echo $user->getDisplayName(); ?>">

<a href="<?php echo CUrlHelper::userLink($user->id); ?>">

</a>