feat: show print progress when status panel is collapsed

[matmen]

Adds a linear print progress bar to the status panel when it's collapsed, so the current progress is always visible

Before

After

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Closes #1432

[matmen]

not sure what happened in commit 8c651f4, i think i may have committed the wrong file ;) will take a look at it when i get home

[pedrolamas]

I had previously taken a quick stab at this and stopped when I noticed that it would break the corners style... seems you are hitting the same issue here:

[matmen]

Yep! I fixed that locally (should have been commit 8c651f4), but looks like I pushed the wrong file. I'll push the correct one when I get home and let you know 😉

[matmen]

@pedrolamas should be good to go :)

[matmen]

well, looks like there still is some kind of bug related to the v-if in the slot template. for whatever reason the hasCollapsedContentSlot getter only gets called on component initialization, but not when the isCollapsed state changes, resulting in unexpected behavior. changing the getter to a function fixes this, but also makes vue re-evaluate the expression every second or so, not sure if that's just because of the component re-rendering tho..

edit: well, this makes sense: "Please note that slots are not reactive". should be fixed in 02cb0c1

[pedrolamas]

LGTM!