[IMP] project: put in bold the text in table column when text-bold class

This commit add a css style when a td (= table column) has the class
`text-bold` to put in bold the text in that column.

task-2814466

Part-of: odoo/odoo#88219

addons/project/static/src/scss/project_rightpanel.scss

@@ -144,8 +144,12 @@ html .o_web_client > .o_action_manager > .o_action > .o_content > .o_controller_
                 &:not(:last-child) {
                     padding-bottom: 1rem;
                 }
-
             }
+
+            td.text-bold {
+                font-weight: bold;
+            }
+
             table > tfoot {
                 font-weight: bold;
                 border-top: 1px solid black;