nk_widget() and nk_widget_bounds() do not return the same values

The nk_widget() function inexplicably returns truncated values for the bounds, unlike nk_widget_bounds(). The guilty code in nk_widget() is:

````
/* need to convert to int here to remove floating point errors */
bounds->x = (float)((int)bounds->x);
bounds->y = (float)((int)bounds->y);
bounds->w = (float)((int)bounds->w);
bounds->h = (float)((int)bounds->h);
````
Can anyone explain what "floating point errors" it might be guarding against, and why does nk_widget_bounds() give a different value?

Compare the nk_widget() implementation with nk_widget_bounds(), focusing on the shown integer conversions and the values each function returns. Determine which behavior is intended and document or correct the discrepancy so both functions have consistent bounds results.

Written by the indexing model from the issue text.