Reduce the `template` size

[infomiho]

Unpacked the template is 14 MB as it sits now. The biggest offenders are:

3.8M	./app/src/client/static/open-saas-banner-dark.png
2.2M	./app/src/client/static/open-saas-banner-light.png
1.8M	./blog/public/CRAIG_ROCK.png
336K	./blog/package-lock.json
220K	./app/src/client/static/assets/aiready.webp
220K	./app/src/client/static/assets/aiready-dark.webp
196K	./app/src/client/static/assets/admin.webp
172K	./app/src/client/static/assets/payments.webp
168K	./app/public/favicon.ico
148K	./blog/public/banner-images/default-banner.webp

We should really switch the banners with their SVG equivalent or get rid of the completely.

We also should consider look into removing the custom font since it sits at around 3 MBs.