[FIX] web_editor: ensure <font> colors are kept properly

Color and background-color styles on `<font>` tags were being wrongly overridden when applying another color or background color to the element.

Task-2580158

(cherry picked from commit a532d096faf55550ac6d01795aaa2b6843ebc988)

addons/web_editor/static/lib/odoo-editor/src/commands/commands.js

@@ -498,7 +498,7 @@ export const editorCommands = {
         // Color the selected <font>s and remove uncolored fonts.
         for (const font of new Set(fonts)) {
             colorElement(font, color, mode);
-            if (!hasColor(font, mode) && !hasColor(font, mode)) {
+            if (!hasColor(font, mode) && !font.hasAttribute('style')) {
                 for (const child of [...font.childNodes]) {
                     font.parentNode.insertBefore(child, font);
                 }