Fix locale fallback rendering of SDKv4/SDKv3/MethodPromo

The locale route only registered Button and Inline. When a locale falls
back to English MDX that uses MethodPromo or SDKv* tabs, the build
crashed with "Expected component MethodPromo to be defined". Register
the same components as the English route.

Author: eandreeva-twr

src/pages/[locale]/[...slug].astro

@@ -13,6 +13,9 @@ import ArticleButtons from '../../components/ArticleButtons.astro';
 import Button from '../../components/Button.astro';
 import Inline from '../../components/Inline.astro';
 import MDXImage from '../../components/MDXImage.astro';
+import SDKv4 from '../../components/SDKv4.astro';
+import SDKv3 from '../../components/SDKv3.astro';
+import MethodPromo from '../../components/MethodPromo.astro';
 import { CompoundCalculator } from '../../components/CompoundCalculator';
 import { SimpleCalculator } from '../../components/SimpleCalculator';
 import { SUPPORTED_LOCALES, getBuildLocales } from '../../data/locales';
@@ -187,6 +190,9 @@ Object.entries(localeReusableComponents).forEach(([p, module]: [string, any]) =>
         SimpleCalculator,
         Button,
         Inline,
+        SDKv4,
+        SDKv3,
+        MethodPromo,
         Homepage: LocalizedHomepage,
         img: MDXImage,
         ...globalComponents