Include alexmolas.com to sites list

[alexmolas]

This PR is:

• Adding a new domain
• Updating existing domain size
• Changing domain name
• Removing existing domain from list
• Website code changes (512kb.club site)
• Other not listed

• I used the uncompressed size of the site
• I have included a link to the GTMetrix report
• The domain is in the correct alphabetical order
• This site is not a ultra lightweight site
• The following information is filled identical to the data file

I confirm that I have read the FAQ section, particularly the two red items around minimal pages and inappropriate content and I attest that this site is neither of these things.

• Check to confirm

- domain: alexmolas.com
  url: https://www.alexmolas.com
  size: 230
  last_checked: 2023-07-18

GTMetrix Report:

https://gtmetrix.com/reports/alexmolas.com/P69MCIQN/

[garritfra]

While this looks quite ultra-minimal (as defined in our FAQ), I do appreciate the clean design on this site in particular. Thanks for adding it!