SmartControl for Syrve

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v3.5: added event filters by type and order number; event sorting and grouping; updated user guide;
v3.4: added display of employee position and personal shift status; added new translations;
v3.3: fixed prepayment amounts display in orders;
v3.2: added ability to disconnect employees from viewing restaurant data; summary information on discounts;
v3.1: opening orders from dangerous operations window;
v3.0: added order sorting by number or date;
v2.9: added Latvian, Turkish translations;