change error massage to indicate filter name should be unique

[Ali Hürriyetoglu]

When you select a collection in Analysis Filter tab, you enter your information and the filter name. If the filter name is available in the database, you get the error message: "This name is in use. Please write another." But this error message should be more specific. Indicate that the filter name should be unique.

[Aslıhan ARSLAN]

Resolved