looknfeel: open new windows on the active workspace (fix portal file dialogs) (#6317)

Set misc:initial_workspace_tracking = 0 so new windows appear on the currently
active workspace rather than the one their process was first launched on.

Without this, file-picker dialogs drawn by xdg-desktop-portal-gtk (browser
Open/Save, GTK app choosers, etc.) always open on the workspace where the portal
process started at login (typically workspace 1) instead of following the app
that requested them. So a Save dialog triggered from a browser on workspace 2
pops up on workspace 1, out of view.

Trade-off: an app launched on one workspace that switches away before its window
maps will now open on the new active workspace. In practice the dialog-follows-app
behavior is the more intuitive default.

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

default/hypr/looknfeel.lua

@@ -109,6 +109,11 @@ hl.config({
     focus_on_activate = true,
     anr_missed_pings = 3,
     on_focus_under_fullscreen = 1,
+    -- Open new windows on the active workspace, not the one their process was
+    -- launched on. Otherwise xdg-desktop-portal-gtk file dialogs (browser
+    -- Open/Save, etc.) always appear on the workspace where the portal first
+    -- started at login, instead of following the app that requested them.
+    initial_workspace_tracking = 0,
   },
 
   cursor = {