This update fixes an issue where emojis, particularly complex ones like `👨‍🚒`, were being displayed incorrectly due to how they were encoded. The team backported a more robust regex pattern from a recent version of Odoo to ensure all emojis are correctly rendered. This improves the overall email experience for users.

Bug
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Some emoji like `👨‍🚒` are separated, because they are built using `👨 + Emoji_Modifier + 🚒` (`\uFE0F` can also be used to get the variant of the emoji).

Adapt the regex to take into account those Unicode variations.

Task-5491124