fix(git): update .gitignore file and add dev.tfvars file for dev TF workspace

.gitignore

@@ -8,12 +8,8 @@
 # Crash log files
 crash.log
 
-# Exclude all .tfvars files, which are likely to contain sentitive data, such as
-# password, private keys, and other secrets. These should not be part of version 
-# control as they are data points which are potentially sensitive and subject 
-# to change depending on the environment.
-#
-*.tfvars
+# Exclude default terraform.tfvars file
+terraform.tfvars
 
 # Ignore override files as they are usually used to override resources locally and so
 # are not checked in

deploy/vars/dev.tfvars

+dynamodb_read_capacity  = 1
+dynamodb_write_capacity = 1
+dynamodb_enable_pitr    = false