[FEAT]: Migrate template refs to use 'useTemplateRef'

[snepsnepy]

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Hey! 😄

I'd like to propose to migrate the existing template references from the legacy 'ref<HTMLElement | null>(null)' pattern to Vue 3.5 'useTemplateRef' API.

This approach represents the framework's official direction for template references management and it has a couple of benefits like:

• Enhanced type safety by eliminating nullable type annotations, since Vue will handle the initalization
• Provides explicit naming conventions
• Reduces boilerplate code and potential null reference errors

You can find more info down below:

useTemplateRef()

Validations

• I have checked other issues to see if my issue was already discussed or addressed

[DavidHDev]

Sounds good!

[DavidHDev]

Appreciate it! #39