Folders: Don't escape words like "in" or "at" in path filters

[graciousgrey]

When having folders with names including spaces in combination with words like "in" or "at", e.g. "Flowers in the Park", the path filter does not work because it's modified to "Flowers&the Park"

DEBU photos: found 0 results for filter:"path:Flowers in the Park public:true" path:"Flowers&the Park" public:true dist:20 album:ar5lbhk1znudom3i count:60 order:added merged:true

Acceptance Criteria:

• It MUST be possible to filter for paths like "Flowers in the Park"