Minor Bug in Breakpoint Mixin (Media Queries)

/src/components/sass/mixins/_breakpoint.scss

When using max-width and min-width altogether in media queries along with predefined breakpoints, a small definition gap (or overlap) arises at exactly the breakpoint.

One possible solution is to reduce the (aliased) breakpoint's pixel size by one, if the non-default selector "max-width" is used along with breakpoint aliases. When invoking the breakpoint mixin with pixel values (not aliases), this reduction should not happen.