Align username and password boxes

[kisaragi-hiu]

The username and password boxes are misaligned on the x axis; the username box is also covering up the border in the background image.

Before:

After:

[Michal-Szczepaniak]

I aligned them to the photo so im not sure about this PR. You can set color: to "transparent" and see that they are perfectly aligned to the original text

[Michal-Szczepaniak]

@kisaragi-hiu What display aspect do you have? i've found that on 16:9 it's aligned perfectly but on 16:10 there is an issue

[kisaragi-hiu]

I'm using a 16:9 monitor, although I see the same when I test it in sddm-greeter --test-mode.

What I meant is that the black text input boxes overlaid on top of the background image are misaligned, at least on my screen: the cursor starts more to the right in the password box than in the username box.

Gifs probably show it more clearly (ignoring the visual glitches from recording):

Before:

After:

[Michal-Szczepaniak]

Lemme check it here