Merge pull request #1613 from ramox81/codex/sheet-set-manager

Sheet Set Manager, NEWSHEETSET / OPENSHEETSET and sheet set fields, with review fixes.

# Conflicts:
#	Cargo.lock
#	src/app/control/actions.rs
#	src/app/mod.rs
#	src/app/settings.rs
#	src/app/update/dialog.rs
#	src/app/update/file.rs
#	src/app/update/mod.rs
#	src/app/view/mod.rs
#	src/ui/dock.rs
#	src/ui/ribbon/mod.rs
#	src/ui/window/field_dialog.rs
#	src/ui/window/mod.rs

src/ui/ribbon/widgets.rs

@@ -39,6 +39,7 @@ pub(super) struct ToggleState {
     pub show_properties: bool,
     pub show_count_palette: bool,
     pub show_block_palette: bool,
+    pub show_sheet_set: bool,
     pub show_file_tabs: bool,
     pub show_layout_tabs: bool,
 }
@@ -382,6 +383,7 @@ pub(super) fn is_active_tool(
         "PROPERTIES" => state.show_properties,
         "COUNTLIST" => state.show_count_palette,
         "BLOCKPALETTE" => state.show_block_palette,
+        "SHEETSET" => state.show_sheet_set,
         "FILETAB" => state.show_file_tabs,
         "LAYOUTTAB" => state.show_layout_tabs,
         id => active_tool.as_deref() == Some(id),