refactor: fix hidden eslint errors (#49365)

* refactor: explicit types for validate

* refactor: explicit return types for ui-components

* refactor: use exec instead of match

* refactor: add lots more boundary types

* refactor: more eslint warnings

* refactor: more explicit exports

* refactor: more explicit types

* refactor: even more explicit types

* fix: relax type contrainsts for superblock-order

* refactor: final boundaries

* refactor: avoid using 'object' type

* fix: use named import for captureException

This uses TypeScript (which works) instead of import/namespace
(which doesn't) to check if captureException exists in sentry/gatsby
(it does)

tools/scripts/build/schema/trending-schema.ts

@@ -65,6 +65,6 @@ const schema = Joi.object().keys({
 
 export const trendingSchemaValidator = (
   trendingObj: Record<string, string>
-) => {
+): Joi.ValidationResult => {
   return schema.validate(trendingObj);
 };