[Class stats] Adjust search error texts #260

Job	Run time
test / Build backend	1m 5s
test / Lint backend	53s
test / Lint frontend	1m 47s
test / Build anon sis-db and push to toska hub if new migrations have been added	8s
test / Build anon user-db and push to toska hub if new migrations have been added	25s
test / Build anon kone-db and push to toska hub if new migrations have been added	16s
test / Test completed courses	6m 46s
test / Test faculty statistics	9m 11s
test / Test custom population	8m 29s
test / Test course statistics	6m 42s
test / Test filters	7m 9s
test / Test open uni search	5m 32s
test / Test population statistics	6m 49s
test / Check services run correctly	4m 24s
test / Test studyprogramme overview	13m 0s
test / Test student statistics	5m 22s
test / Test teachers and users	5m 31s
Build and release frontend	5m 0s
Build and release backend	45s
Report deployment failure to oodikone notifications	8s
Report deployment success to oodikone notifications	0s
	1h 29m 22s

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