Layout manager (#4601)

* ad plugin override_layout command

* watch available layouts and report to plugin thread

* Event::AvailableLayoutInfo

* save layout command

* refactor save_layout

* fix api and permissions

* delete_layout API command

* edit layout in place API

* edit layout response through api

* propagate layout parsing errors

* generate random name plugin api

* dump stringified layout API

* synchronicity dump_session_layout and include LayoutMetadata in sync response

* parse_layout plugin api

* fix: default to default layout dir in plugin api

* rename_layout plugin command API

* initial implementation of multi-tab override

* apply to multiple tabs

* allow applying to only the active tab

* add tab/pane names to layout parsing metadata

* indicate is_builtin_plugin in PaneMetadata

* get_layout_dir plugin API command

* consolidate (and fix) is_builtin_plugin logic

* fix bad ret

* allow dumping the layout for just a specific tab in the session

* get focused pane and tab sync api

* color last substring variants

* add plugin

* update assets

* fix tests

* add e2e tests for new plugin apis

* update ui with new shortcut

* rustfmt

* docs(changelog): add PR

1 files changed, 7 insertions, 0 deletions

diff --git a/example/default.kdl b/example/default.kdl
index e11be799..f82030be 100644
--- a/example/default.kdl
+++ b/example/default.kdl
@@ -150,6 +150,13 @@ keybinds {
             };
             SwitchToMode "Normal"
         }
+        bind "l" {
+            LaunchOrFocusPlugin "zellij:layout-manager" {
+                floating true
+                move_to_focused_tab true
+            };
+            SwitchToMode "Normal"
+        }
     }
     tmux {
         bind "[" { SwitchToMode "Scroll"; }