feat(sessions): welcome screen (#3112)

* prototype - can send layout name for new session from session-manager

* feat(sessions): ui for selecting layout for new session in the session-manager

* fix: send available layouts to plugins

* make tests compile

* fix tests

* improve ui

* fix: respect built-in layouts

* ui for built-in layouts

* some cleanups

* style(fmt): rustfmt

* welcome screen ui

* fix: make sure layout config is not shared between sessions

* allow disconnecting other users from current session and killing other sessions

* fix: respect default layout

* add welcome screen layout

* tests(plugins): new api methods

* fix(session-manager): do not quit welcome screen on esc and break

* fix(plugins): adjust permissions

* style(fmt): rustfmt

* style(fmt): fix warnings

1 files changed, 8 insertions, 0 deletions

diff --git a/zellij-utils/src/plugin_api/plugin_command.proto b/zellij-utils/src/plugin_api/plugin_command.proto
index 6ffb0345..b02dd73f 100644
--- a/zellij-utils/src/plugin_api/plugin_command.proto
+++ b/zellij-utils/src/plugin_api/plugin_command.proto
@@ -91,6 +91,8 @@ enum CommandName {
   BlockCliPipeInput = 77;
   CliPipeOutput = 78;
   MessageToPlugin = 79;
+  DisconnectOtherClients = 80;
+  KillSessions = 81;
 }
 
 message PluginCommand {
@@ -145,9 +147,14 @@ message PluginCommand {
     string block_cli_pipe_input_payload = 48;
     CliPipeOutputPayload cli_pipe_output_payload = 49;
     MessageToPluginPayload message_to_plugin_payload = 50;
+    KillSessionsPayload kill_sessions_payload = 60;
   }
 }
 
+message KillSessionsPayload {
+  repeated string session_names = 1;
+}
+
 message CliPipeOutputPayload {
   string pipe_name = 1;
   string output = 2;
@@ -185,6 +192,7 @@ message SwitchSessionPayload {
   optional uint32 tab_position = 2;
   optional uint32 pane_id = 3;
   optional bool pane_id_is_plugin = 4;
+  optional event.LayoutInfo layout = 5;
 }
 
 message RequestPluginPermissionPayload {