Minor UI bugs (another random mix)

1) if you place more attachments in a post, they dont have bottom margin

2) in post edit, these attachments dont have margin at all and it is confusing to manage them

3) when there is a long popup, it goes outside the page layout even when theres space above as seen in a video 🤔

4) incorrect border radius in followers table in two scenarios - with no content and with pagination (maybe with one page content without pagination too)

5) incorrect top border radius in profile activity and top border of pagination missing

6) browser navigation backward / forward doesnt work in profile / solutions overview (at least in chrome 133)

7) double border in a dialog when you want to feature some content

8) missing little arrow pointing to the link in a login popup

(i reported this one already, but later in a comment so im not sure if this was logged 🤔)