EDIT: I did research about in the forums and managed to find two threads:
https://moodle.org/mod/forum/discuss.php?d=349205 and https://moodle.org/mod/forum/discuss.php?d=378837
I am using the Edwiser RemUI theme however so I am looking for a way to amend the code. Not sure if this is tied to the theme code or the forum code in general as I am not particularly savvy with CSS/HTML in general but if someone can lend me a hand it will be a big help!
EDIT 2:
After a thorough research (again I am not that tech savvy) I learned of the float variable and with some careful shenanigans managed to alter the code in the inspect option of my browser to test the code. This is what I managed to do:
Here I changed the div class element of grouppictures' position - I just dragged it bellow div class forumpost and changed the element to float-right.
And the result:
Can this actually work as simple as it is for a solution if I change the CSS code in the HTML/CSS file on the server via notepad? Or is there a master file I have to access?