terminal: printCell writes with the current pen's content type

src/terminal/Screen.zig

@@ -134,6 +134,10 @@ pub const Cursor = struct {
     /// because its most likely null.
     hyperlink: ?*hyperlink.Hyperlink = null,
 
+    /// The current semantic content type for the cursor that will be
+    /// applied to any newly written cells.
+    semantic_content: pagepkg.Cell.SemanticContent = .output,
+
     /// The pointers into the page list where the cursor is currently
     /// located. This makes it faster to move the cursor.
     page_pin: *PageList.Pin,

src/terminal/Terminal.zig

@@ -711,6 +711,7 @@ fn printCell(
         .style_id = self.screens.active.cursor.style_id,
         .wide = wide,
         .protected = self.screens.active.cursor.protected,
+        .semantic_content = self.screens.active.cursor.semantic_content,
     };
 
     if (style_changed) {
@@ -11236,6 +11237,7 @@ test "Terminal: fullReset with a non-empty pen" {
 
     try t.setAttribute(.{ .direct_color_fg = .{ .r = 0xFF, .g = 0, .b = 0x7F } });
     try t.setAttribute(.{ .direct_color_bg = .{ .r = 0xFF, .g = 0, .b = 0x7F } });
+    t.screens.active.cursor.semantic_content = .input;
     t.fullReset();
 
     {
@@ -11248,6 +11250,7 @@ test "Terminal: fullReset with a non-empty pen" {
     }
 
     try testing.expectEqual(@as(style.Id, 0), t.screens.active.cursor.style_id);
+    try testing.expectEqual(.output, t.screens.active.cursor.semantic_content);
 }
 
 test "Terminal: fullReset hyperlink" {