feat(panic): panic handler to recover termios when crashing

examples/styles/palette.zig

@@ -93,6 +93,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");

examples/styles/text.zig

@@ -148,6 +148,7 @@ pub fn main() !void {
     }
 }
 
+pub const panic = App.panic_handler;
 const log = std.log.scoped(.default);
 
 const std = @import("std");