[IDEA] Implement analytics for BetterGovPh

[francisaguilar21]

Summary

A suggestion was raised in Discord on having analytics to understand which areas of the site are "hotspots" for users. Moreover, this can help the community understand what is helpful, what can be improved, and what is lacking about the website.

Points for Consideration

• Privacy
• Pricing
• Features
• User Access & Management

Notes

• @mayspc raised that it would be great to implement PostHog instead of Google Analytics. I agree since it's cheaper, more "privacy friendly", and have more features.
• Here's an in-depth comparison of PostHog vs GA4
• Discord Thread Link
• We don't need to implement PostHog if the community desires to use something else. The main goal is to have analytics.