Various admin tweaks to enhance ProcessWire admin.
@tpr, this is a minor thing, but I'm wondering if the magnifying glass icon could be changed perhaps.
One thing is that its direction changes in different usages:
Another thing (and this is a personal opinion) is that this coloured icon is kinda ugly. It's style is too different to other icons in the UI and it stands out too much. I see that the icon is rendered using Segoe UI Emoji, so maybe the coloured appearance is just a Windows thing? Maybe you could use the Font Awesome ver