Transpile icon SVGs with display name

.changeset/famous-rats-invent.md

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+---
+'@shopify/polaris-icons': patch
+---
+
+Add displayName to transpiled icons

polaris-icons/.svgrrc.js

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+module.exports = {
+  template: require('./icon-template.js'),
+};

polaris-icons/icon-template.js

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+function defaultTemplate(
+  {template},
+  opts,
+  {imports, componentName, props, jsx, exports},
+) {
+  return template.ast`${imports}
+const ${componentName} = (${props}) => ${jsx}
+
+${componentName}.displayName = "${componentName.name.replace(/^Svg/g, '')}";
+
+${exports}
+`;
+}
+
+module.exports = defaultTemplate;