Start to create the first test cases in TestRail

[tatianasheremet]

• [x] Try to create several cases, check if there is no issues with access, mark here if done @IhorKozlov
• [x] Try to create several cases, check if there is no issues with access, mark here if done @JuliaRabovich
• [x] Try to create several cases, check if there is no issues with access, mark here if done @EvheniiRadionov
• [x] Try to create several cases, check if there is no issues with access, mark here if done @Hranovskyu-Dmutro
• [ ] Try to create several cases, check if there is no issues with access, mark here if done @ тут мог бы быть ваш Вячеслав