Telephone country code select (#9473)

* add telephone code select

* add flags

* run svgo on flags

* get it somewhat working on web

* get web closed state working

* verify country code we get from geo

* trim down names to shorter common versions

* add labels to other selects

* make international tel codes a static object

* add component to storybook

* Update src/lib/international-telephone-codes.ts

Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

* update to new geo hook

* use Intl.DisplayNames, add polyfill

* use in rather than keys().includes()

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Co-authored-by: surfdude29 <149612116+surfdude29@users.noreply.github.com>

src/components/ageAssurance/AgeAssuranceInitDialog.tsx

@@ -289,6 +289,7 @@ function Inner() {
                   <Trans>Your preferred language</Trans>
                 </TextField.LabelText>
                 <LanguageSelect
+                  label={_(msg`Preferred language`)}
                   value={language}
                   onChange={value => {
                     setLanguage(value)