Remove subject filtering, keep only priority buttons

- Remove subject filter menu and related code
- Simplify filtering to priority groups only
- Keep Remove Filters button for priority reset
- Clean up unused code and UI elements

gotify_tray/gui/models/MessagesModel.py

@@ -41,42 +41,14 @@ class MessagesModel(QtGui.QStandardItemModel):
 
 
 class MessagesProxyModel(QtCore.QSortFilterProxyModel):
-    unique_titles_updated = QtCore.pyqtSignal(set)
-
     def __init__(self, parent=None):
         super().__init__(parent)
         self.allowed_priorities = set(range(11))  # 0-10
-        self.allowed_titles = set()  # empty means all
-        self.unique_titles = set()
 
     def set_allowed_priorities(self, priorities: set[int]):
         self.allowed_priorities = priorities
         self.invalidateFilter()
 
-    def set_allowed_titles(self, titles: set[str]):
-        print("Proxy setting allowed titles:", titles)
-        self.allowed_titles = titles
-        self.invalidateFilter()
-
-    def update_unique_titles(self):
-        if not self.sourceModel():
-            return
-        titles = set()
-        for row in range(self.sourceModel().rowCount()):
-            index = self.sourceModel().index(row, 0)
-            item = self.sourceModel().itemFromIndex(index)
-            message = item.data(MessageItemDataRole.MessageRole)
-            if message.title:
-                titles.add(message.title)
-        print("Unique titles found:", titles)
-        for row in range(self.sourceModel().rowCount()):
-            index = self.sourceModel().index(row, 0)
-            item = self.sourceModel().itemFromIndex(index)
-            message = item.data(MessageItemDataRole.MessageRole)
-            print(f"Message {row}: title={message.title}, priority={message.priority}")
-        self.unique_titles = titles
-        self.unique_titles_updated.emit(self.unique_titles)
-
     def filterAcceptsRow(
         self, source_row: int, source_parent: QtCore.QModelIndex
     ) -> bool:
@@ -86,10 +58,4 @@ class MessagesProxyModel(QtCore.QSortFilterProxyModel):
         priority = message.priority if message.priority is not None else 0
         if self.allowed_priorities and priority not in self.allowed_priorities:
             return False
-        if (
-            self.allowed_titles
-            and message.title is not None
-            and message.title not in self.allowed_titles
-        ):
-            return False
         return True