Add analytics template + Add Ko-Fi donation button + Host fonts locally (#530)

* Add Blogtrottr as newsletter provider

* Fixed absLangURL issue with sections in footer

* Fixes LaTeX support

Makes scripts fully local and only loads them if math:true. Adds support for 18462\latex18462 or even $\latex$

* Added 2 New, Privacy-Friendly Analytics Methods

Counter.dev and GoatAnalytics. Google Analytics should keep working the same

* Removed 1 CDN

* Moved params under features

* Added Ko-Fi floating button for support

* Refactor analytics code + Add local fonts

Signed-off-by: hossainemruz <hossainemruz@gmail.com>

Co-authored-by: Pablo Marcos <codebergflamingo@staplehorse.anonaddy.com>
Co-authored-by: Emruz Hossain <hossainemruz@gmail.com>

static/katex/auto-render.min.js

@@ -0,0 +1 @@
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