Fix desktop-icon deselection and workspace-teleport-on-close; document a shadow limit

Desktop icons stayed highlighted after clicking a window: select_desktop_icon(None)
was only ever called from start_desktop_marquee, never from the one place every
focus path (click, Alt-Tab, dock IPC, scratchpad show, snap flyout) already
funnels through. Added the deselect there instead of per-caller.

Closing a focused window could silently switch the user's active workspace:
remove_window's fallback picked self.order.last(), but that list is global,
not per-workspace, so it could land on a background window elsewhere - and
focus_window already switches workspace to match whatever it's given (a real,
separate feature for a deliberate srd dispatch focus). Fixed by preferring a
same-workspace window first. New general.close_focus_follows_workspace
(default false, live-settable) controls what happens only when nothing is
left on the current workspace at all: off leaves focus at nothing, matching
Windows/GNOME/macOS; on restores the old always-follow-the-global-fallback
behaviour. Three new tests.

Also documented, not fixed: shadows can still bleed onto a neighbouring
*monitor* near a multi-output seam (shadow_rect has no monitor-boundary
awareness), found via a live cross-monitor screenshot. Moot for this
session since general.shadows is already off in the live config, but a
real, open gap for anyone who re-enables shadows on a multi-monitor setup.

1 files changed, 11 insertions, 0 deletions

diff --git a/docs/DEFAULTS.md b/docs/DEFAULTS.md
index 3986654..3d1a863 100644
--- a/docs/DEFAULTS.md
+++ b/docs/DEFAULTS.md
@@ -27,7 +27,18 @@ srd.set("general.file_manager", "")                    -- Default: "" - empty me
 srd.set("general.desktop_icon_single_click", false)    -- Default: false - double-click opens an icon
 srd.set("general.terminal", "")                        -- Default: "" - empty tries a common terminal on $PATH
 srd.set("general.phone_mode", false)                   -- Default: false - see "Phone mode" below
+srd.set("general.close_focus_follows_workspace", false) - Default: false - see below
 ```
+
+`close_focus_follows_workspace` decides what happens when your currently
+focused window closes and no other window is left on the workspace you're
+looking at. `false` (the default) leaves you with nothing focused on your
+own workspace - it never switches you elsewhere, matching Windows/GNOME/
+macOS, none of which change your active workspace just because a window
+closed. `true` restores the alternate behaviour: falling back to whichever
+window was focused most recently anywhere, switching your active workspace
+to follow it there (matching Hyprland's own `focuswindow`-driven
+convention). Live-settable: `srd set close_focus_follows_workspace <bool>`.
 `general.smart_placement`/`general.border_width` are not listed: neither
 is implemented - new-window placement always uses smart placement
 unconditionally (no toggle exists), and the real, working border-width