In api/components/suggestions the parameter s should be optional.
- If the parameter is not set, only the favorites/recentlyBrowsed items are returned (which could also mean, that no suggestions are returned, as usual for the search).
- The suggestions should be ordered by:
- whether they are favorite/recentlyBrowsed/other
- their names
- All the other features of this ws (grouping per qualifier, limit of 6 items, "showMore", etc.) should apply as usual.
- If the parameter s is specified, it has to be valid (minimum 2 characters, etc.)