feat(plugins): async plugin loading (#2327)

* work

* refactor(plugins): break down start plugin async function

* work

* loading messages

* nice ui

* floating panes and error handling

* cleanups and conflicting plugin/direction

* find exact pane when relayouting

* fix plugin pane titles

* kill loading tasks on exit

* refactor: move stuff around

* style(fmt): rustfmt

* various fixes and refactors

1 files changed, 8 insertions, 0 deletions

diff --git a/zellij-utils/src/errors.rs b/zellij-utils/src/errors.rs
index f1522c1de..8a0f63317 100644
--- a/zellij-utils/src/errors.rs
+++ b/zellij-utils/src/errors.rs
@@ -324,6 +324,11 @@ pub enum ScreenContext {
     PreviousSwapLayout,
     NextSwapLayout,
     QueryTabNames,
+    NewTiledPluginPane,
+    NewFloatingPluginPane,
+    AddPlugin,
+    UpdatePluginLoadingStage,
+    ProgressPluginLoadingOffset,
 }
 
 /// Stack call representations corresponding to the different types of [`PtyInstruction`]s.
@@ -354,6 +359,7 @@ pub enum PluginContext {
     AddClient,
     RemoveClient,
     NewTab,
+    ApplyCachedEvents,
 }
 
 /// Stack call representations corresponding to the different types of [`ClientInstruction`]s.
@@ -399,6 +405,8 @@ pub enum PtyWriteContext {
 #[derive(Debug, Clone, Copy, PartialEq, Serialize, Deserialize)]
 pub enum BackgroundJobContext {
     DisplayPaneError,
+    AnimatePluginLoading,
+    StopPluginLoadingAnimation,
     Exit,
 }