Fixup for #21145
To reproduce:
1. Select status filter with 0 torrents
2. Enable 'Auto hide zero status filters' and save settings. Hidden filter is still selected:
PR #22487.
We can only edit one URL through the dialog, so there's no point in showing this context option when more than one tracker is selected in trackers table.
PR #22311.
This PR fixes a bug where the sort icon did not update correctly after reordering columns.
Steps to reproduce:
1. Sort a column
2. Move it to a different position
3. The sort icon remains in its original location
PR #22299.
Some people are still unhappy with "standalone window mode" of "Add new torrent dialog" so just provide them with an option to use old "modal dialog mode" in all the current qBittorrent branches.
PR #22492 (based on original PR #19874).
In Trackers table, moving the 'URL' column from its default (2) position caused the 'Tracker editing' dialog to display incorrect data.
Steps to reproduce:
1. Move 'URL' column in Trackers table to any position from default
2. Choose tracker URL and click 'Edit tracker URL'
PR #22338.
This PR fixes a memory leak in context menus. Previously, for some reason, each menu retained references to its target elements without utilizing them further. Since the targets property was accessible/reachable from the root (window object), these references persisted even after the elements were removed from the DOM, preventing them from being garbage collected.
It's easily reproducible - just add a decent amount of torrents, switch between categories multiple times, then capture heap/detached elements snapshot in the Memory tab (Chrome dev tools). The number of detached elements will continue to increase after each category switch and they won't be cleaned up.
[More context](https://github.com/qbittorrent/qBittorrent/pull/22220/files#r1941137796)
PR #22234.
The `announce_port` setting permits to overwrite the port passed along to trackers as the `&port=` parameter. If left as the default, the listening port is used. This setting is only meant for very special cases where a seed's listening port differs from the effectively exposed port (e.g., through external NAT-PMP). See https://github.com/arvidn/libtorrent/pull/7771 for an example use-case.
This PR adds the relevant setting alongside the existing `announce_ip` setting.
PR #21692.
