Add prettier configuration to match search repo

Ignore vocabulary directory from upstream

.prettierignore

@@ -0,0 +1,4 @@
+# https://prettier.io/docs/en/ignore.html
+
+# Ignore Vocabulary files (formatting handled upstream)
+src/vocabulary/

.prettierrc.yaml

@@ -0,0 +1,8 @@
+# https://prettier.io/docs/en/options.html#print-width
+printWidth: 79
+
+# https://prettier.io/docs/en/options.html#bracket-line
+bracketSameLine: true
+
+# https://prettier.io/docs/en/options.html#single-attribute-per-line
+singleAttributePerLine: true