auto adjust SQL-editor window's name when loading or saving

[Rolf61]

I wonder if it would make sense to implement an automatic change of the name of an "unnamed"SQL-editor window e.g. "SQL editor 2" to the file name of the file used, when save-sql-to-file or load-sql-from-file is executed?

[pawelsalawa]

Good idea. Created #4561 for this.