DEV: Correct typos and spelling mistakes (#12812)

Over the years we accrued many spelling mistakes in the code base. 

This PR attempts to fix spelling mistakes and typos in all areas of the code that are extremely safe to change 

- comments
- test descriptions
- other low risk areas

db/fixtures/001_refresh.rb

@@ -9,7 +9,7 @@ class SeedData::Refresher
     @mutex.synchronize do
       return if @refreshed
       # Fix any bust caches post initial migration
-      # Not that reset_column_information is not thread safe so we have to becareful
+      # Not that reset_column_information is not thread safe so we have to be careful
       # not to run it concurrently within the same process.
       ActiveRecord::Base.connection.tables.each do |table|
         table.classify.constantize.reset_column_information rescue nil