Fix all Prettier parsing errors

Author: alexeyr

.prettierignore

@@ -10,5 +10,10 @@ bundle/
 spec/dummy/lib/bs/**
 spec/dummy/public
 **/.yalc/**
-**/generated/**
+**/*generated*
 *.res.js
+
+# Prettier doesn't understand ERB syntax in YAML files
+.rubocop.yml
+# Intentionally invalid
+spec/react_on_rails/fixtures/i18n/locales_symbols/

.prettierrc

@@ -6,7 +6,6 @@ singleQuote: true
 trailingComma: all
 bracketSpacing: true
 bracketSameLine: false
-parser: typescript
 
 overrides:
 - files: "*.@(css|scss)"
@@ -18,3 +17,6 @@ overrides:
   options:
     parser: json
     printWidth: 100
+- files: ".*rc"
+  options:
+    parser: yaml