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, 18 insertions, 0 deletions

diff --git a/zellij-server/src/plugins/unit/snapshots/zellij_server__plugins__plugin_tests__switch_session_plugin_command.snap b/zellij-server/src/plugins/unit/snapshots/zellij_server__plugins__plugin_tests__switch_session_plugin_command.snap
new file mode 100644
index 000000000..f254f0398
--- /dev/null
+++ b/zellij-server/src/plugins/unit/snapshots/zellij_server__plugins__plugin_tests__switch_session_plugin_command.snap
@@ -0,0 +1,18 @@
+---
+source: zellij-server/src/plugins/./unit/plugin_tests.rs
+assertion_line: 6051
+expression: "format!(\"{:#?}\", switch_session_event)"
+---
+Some(
+    SwitchSession(
+        ConnectToSession {
+            name: Some(
+                "my_new_session",
+            ),
+            tab_position: None,
+            pane_id: None,
+            layout: None,
+        },
+        1,
+    ),
+)