Add file and project search panels

src/session.zig

@@ -335,6 +335,10 @@ pub const Session = struct {
         return self.panels.selectList();
     }
 
+    pub fn activeListItem(self: *const Session) ![]const u8 {
+        return self.panels.activeListItem();
+    }
+
     pub fn cancelListPanel(self: *Session) !void {
         try self.panels.cancelList();
     }