Improvements

1. Set length up to 30 characters for templates name

2. Set length up to 30 characters for remote creation name

3. Marked required names with an asterisk for create and link configuration screen.

4. Harmonized inputs and columns for create and link buttons configurations

5. Fixed UI for delete pop up page

6. Fixed validation for original estimate field on editing the issue template configuration

7. Linked issues field renamed to link type field for create and link buttons configurations and create issue screen

8. Adjusted text template message if templates are not configured