fix(terminal): correctly restore termios and screen's during panic_handler

src/app.zig

@@ -88,11 +88,11 @@ pub fn App(comptime E: type) type {
 
         pub fn stop(this: *@This()) !void {
             try this.interrupt();
-            if (this.termios) |*termios| {
+            if (this.termios) |termios| {
                 try terminal.disableMouseSupport();
                 try terminal.showCursor();
                 try terminal.restoreScreen();
-                try terminal.disableRawMode(termios);
+                try terminal.disableRawMode(&termios);
                 try terminal.exitAltScreen();
             }
             this.termios = null;
@@ -391,9 +391,9 @@ pub fn App(comptime E: type) type {
 
         pub fn panic_handler(msg: []const u8, _: ?*std.builtin.StackTrace, ret_addr: ?usize) noreturn {
             terminal.disableMouseSupport() catch {};
-            terminal.exitAltScreen() catch {};
             terminal.showCursor() catch {};
-            var termios: posix.termios = .{
+            terminal.restoreScreen() catch {};
+            terminal.disableRawMode(&.{
                 .iflag = .{},
                 .lflag = .{},
                 .cflag = .{},
@@ -402,9 +402,8 @@ pub fn App(comptime E: type) type {
                 .line = 0,
                 .ispeed = undefined,
                 .ospeed = undefined,
-            };
+            }) catch {};
-            terminal.disableRawMode(&termios) catch {};
+            terminal.exitAltScreen() catch {};
-            terminal.restoreScreen() catch {};
             std.debug.defaultPanic(msg, ret_addr);
         }
 

src/terminal.zig

@@ -197,7 +197,7 @@ pub fn enableRawMode(bak: *posix.termios) !void {
 }
 
 /// Reverts `enableRawMode` to restore initial functionality.
-pub fn disableRawMode(bak: *posix.termios) !void {
+pub fn disableRawMode(bak: *const posix.termios) !void {
     try posix.tcsetattr(
         posix.STDIN_FILENO,
         .FLUSH,