Fix shrinking of last breadcrumb for narrow width

[raimund-schluessler]

After the major changes to the breadcrumb bar in #2411 and #2444 the last breadcrumb does not shrink anymore on small screens. This PR fixes it.

	Before	After
Without Actions
With Actions

[jancborchardt]

Nice, looks good! :)
Btw, at a certain width, should the "Home" icon maybe also be ellipsized into the 3-dot action menu?

[GretaD]

code looks good, didnt test it

[raimund-schluessler]

Btw, at a certain width, should the "Home" icon maybe also be ellipsized into the 3-dot action menu?

I don't have a strong opinion on this. It would save anouther 64 px in width, which would enable showing a bit more of the last folders name. But I am not sure if it's necessary.

This is how it looks on iPhone8.
Currently:

Without the Home icon:

[jancborchardt]

@raimund-schluessler yeah, just a thought, we can see if that ever comes up, then we cpuld do that. :)