🐛 [HTML] Fix cont line tag in the table header

Author: ronisbr

src/backends/html/html_backend.jl

@@ -287,7 +287,8 @@ function _html__print(
             )
 
         elseif action == :horizontal_continuation_cell
-            _aprintln(buf, _html__create_tag("td", "⋯"), il, ns; minify)
+            tag = rs == :column_labels ? "th" : "td"
+            _aprintln(buf, _html__create_tag(tag, "⋯"), il, ns; minify)
 
         elseif action ∈ _VERTICAL_CONTINUATION_CELL_ACTIONS
             # Obtain the cell style.

test/backends/html/cropping.jl

@@ -21,7 +21,7 @@
       <th style = "font-weight: bold; text-align: right;">Col. 1</th>
       <th style = "font-weight: bold; text-align: right;">Col. 2</th>
       <th style = "font-weight: bold; text-align: right;">Col. 3</th>
-      <td>&ctdot;</td>
+      <th>&ctdot;</th>
     </tr>
   </thead>
   <tbody>
@@ -72,7 +72,7 @@
       <th style = "font-weight: bold; text-align: right;">Col. 1</th>
       <th style = "font-weight: bold; text-align: right;">Col. 2</th>
       <th style = "font-weight: bold; text-align: right;">Col. 3</th>
-      <td>&ctdot;</td>
+      <th>&ctdot;</th>
     </tr>
   </thead>
   <tbody>
@@ -118,7 +118,7 @@
       <th style = "font-weight: bold; text-align: right;">Col. 1</th>
       <th style = "font-weight: bold; text-align: right;">Col. 2</th>
       <th style = "font-weight: bold; text-align: right;">Col. 3</th>
-      <td>&ctdot;</td>
+      <th>&ctdot;</th>
     </tr>
   </thead>
   <tbody>

test/backends/html/full.jl

@@ -141,7 +141,7 @@
       <th class = "stubheadLabel" style = "font-weight: bold; text-align: right;">Rows</th>
       <th style = "font-weight: bold; text-align: right;">Col. 1</th>
       <th colspan = "1" style = "border-bottom: 1px solid black; font-weight: bold; text-align: center;">Merged Column<sup>1</sup></th>
-      <td>&ctdot;</td>
+      <th>&ctdot;</th>
     </tr>
   </thead>
   <tbody>
@@ -240,7 +240,7 @@
       <th class = "stubheadLabel" style = "font-weight: bold; text-align: right;">Rows</th>
       <th style = "font-weight: bold; text-align: right;">Col. 1</th>
       <th colspan = "1" style = "border-bottom: 1px solid black; font-weight: bold; text-align: center;">Merged Column<sup>1</sup></th>
-      <td>&ctdot;</td>
+      <th>&ctdot;</th>
     </tr>
   </thead>
   <tbody>