Improve architecture

[joselrio]

This PR is to improve the way to deal with Accessibility attribute names and values. During this change I added some changes to improve the coherency across code.

What was done

• Create a new constant with all the used accessibility attributes until now;
• Sort alphabetically the Global Enum to improve coherency;
• Match comments names in pattern;

Checklist

• tested locally
• documented the code
• clean all warnings and errors of eslint
• requires changes in OutSystems (if so, provide a module with changes)
• requires new sample page in OutSystems (if so, provide a module with changes)