Merge branch 'task-72-feature/fixed_calendar_hours' into 'development'

#72 Зафиксировал часы сверху

See merge request !46

planner-front/src/components/MonthCalendarBody/MonthCalendarBody.js

@@ -31,6 +31,7 @@ function MonthCalendarBody({month, year, tasks, createTaskInCellHandler, current
 
   return (
     <Box style={{marginBottom: '30px'}}>
+      <div style={{position: 'sticky', top: '0px', zIndex: '10', backgroundColor: 'lightgrey'}}>
         <CalendarRow
                 >
             <CalendarSmallCell xs={1.2}> 
@@ -48,6 +49,7 @@ function MonthCalendarBody({month, year, tasks, createTaskInCellHandler, current
                 ) 
               })}
         </CalendarRow>
+    </div>
       {daysInMonth?.map((day, i)=>{
         return (
           <CalendarRow