PS3GameUpdateDownloader v007

changelog:

!  important change
+  new feature or minor change
-  bugfix

-  fixed main window becoming malfunctional when pressing download in the queue window with an empty queue
-  retranslate main window when changing language
+  load english string as fallback when the current localization doesnt contain the wanted string
+  added sorting and removal of entrys to the queue management
+  improved select window
+  every run now has its own logfile
-  prevent the same update being added to queue multiple times
-  fix crashes in queue management
+  check if download directory is writeable
+  added percentage and download speed to main window when downloading
+  log crashes for easier debugging
-  fix crash when downloading on python 3.8
+  use enter key to search for updates in main window