chore: update author in frontmatter

www/_blog/2020-12-13-supabase-dashboard-performance.mdx

@@ -1,7 +1,7 @@
 ---
 title: Making the Supabase Dashboard Supa-fast
 description: Improving the performance of the Supabase dashboard
-author: Inian Parameshwaran
+author: inian_parameshwaran
 author_title: Supabase
 author_url: https://github.com/inian
 author_image_url: https://github.com/inian.png

www/_blog/2021-02-27-cracking-postgres-interview.mdx

@@ -1,7 +1,7 @@
 ---
 title: Cracking PostgreSQL Interview Questions
 description: Understand the top PostgreSQL Interview Questions
-author: Ant Wilson
+author: ant_wilson
 author_title: Supabase
 author_url: https://github.com/awalias
 author_image_url: https://github.com/awalias.png

www/_blog/2021-03-02-supabase-beta-february-2021.mdx

@@ -1,7 +1,7 @@
 ---
 title: Supabase Beta February 2021
 description: One year of building.
-author: Paul Copplestone
+author: paul_copplestone
 author_title: Supabase
 author_url: https://github.com/kiwicopple
 author_image_url: https://github.com/kiwicopple.png

www/_blog/2021-03-11-using-supabase-replit.mdx

@@ -1,7 +1,7 @@
 ---
 title: Using Supabase in Replit
 description: Free hosted relational database from within your node.js repl
-author: awalias
+author: ant_wilson
 author_title: Supabase
 author_url: https://github.com/awalias
 author_image_url: https://github.com/awalias.png