move theme related data from blog to theme

apps/blog/src/components/Header/Buttons/Buttons.tsx

@@ -0,0 +1,21 @@
+import styled from "styled-components"
+
+import LocaleToggleButton from "./LocaleToggleButton"
+import ThemeToggleButton from "./ThemeToggleButton"
+import SearchButton from "./SearchButton"
+
+const RightButtons = styled.div`
+	display: flex;
+	height: 100%;
+	margin-left: auto;
+`
+
+export default () => {
+	return (
+		<RightButtons>
+			<LocaleToggleButton />
+			<ThemeToggleButton />
+			<SearchButton />
+		</RightButtons>
+	)
+}