Fix filter menus

- replaced "No filter" option text with "All", to avoid the "No filter
  is not enabled" situation
- replace the "Filter" label on the button with "1 Filter"/"2 Filters"
  when a filter is active, so a user can immediately see that without
  having to open the filter pop-up

1 files changed, 2 insertions, 1 deletions

diff --git a/src/gui/commonstrings.h b/src/gui/commonstrings.h
index 15d31f067..5a25f800d 100644
--- a/src/gui/commonstrings.h
+++ b/src/gui/commonstrings.h
@@ -22,5 +22,6 @@ namespace CommonStrings {
     QString showInFileBrowser();
     QString showInWebBrowser();
     QString copyToClipBoard();
+    QString filterButtonText(int filterCount);
+}
 }
-}
\ No newline at end of file