Item count view in Tracker windows are now resizing

[humdinger]

This is hrev58480.

The item count view in the bottom left of Tracker windows used to be fixed size. Now I noticed that it is resizing horizontally with the window. With drawing garbage on top:

The view should stay fixed width, as it was before. No idea which commit introduced that, sorry...

[humdinger]

item counter

[waddlesplash]

The garbage drawing should be fixed, but the dynamic resizing was intentional, as part of the changes for HiDPI support. It seemed to make some sense, but maybe there should be a maximum size.

[humdinger]

Definitely a max. width. OTOH, I don't see why HiDPI plays a roll here. Isn't the StringWidth() of e.g. B_TRANSLATE("100.000 items") a nice value for a fixed width, no matter Hi or LoDPI?

[humdinger]

...or, come to think of it, just dynamically use the minimal width for the current contents. That way, even type-ahead-filtering wouldn't need truncation of the filter term.