As salmonmac has already said, the extra yarn can be distributed along the row, shared out between the rest of the stitches until it all looks even.
Here’s a video of how to use a needle to do this and in which direction to pull the yarn so it goes in the shape of the formed stitches. In the video it is one row which is uneven where as you have a vertical line. The vertical line will need a little pulling on each row where it occurs but you probably don’t have to work the loose yarn the whole way across the row.
The times I’ve done this I have distributed all my yarn and made each stitch an even size and not had any spare yarn left by the end of the row (I think this will be the case for you too) but on the video you see if you get to the end of a row you can probably leave a spare loop there and hide it in the seam or secure it with a thread or if it was super long weave it in.
I use this often especially around cable or motifs where I prefer things a little tighter than my needles knit it to get a cleaner motif.