Rename .vue files to .svelte for diffing

frontend/src/components/window/title-bar/WindowTitle.svelte

@@ -0,0 +1,31 @@
+<script lang="ts">
+import { defineComponent, type PropType } from "vue";
+
+import LayoutRow from "@/components/layout/LayoutRow.vue";
+import TextLabel from "@/components/widgets/labels/TextLabel.vue";
+
+export default defineComponent({
+	props: {
+		text: { type: String as PropType<string>, required: true },
+	},
+	components: {
+		LayoutRow,
+		TextLabel,
+	},
+});
+</script>
+
+<template>
+	<LayoutRow class="window-title">
+		<TextLabel>{{ text }}</TextLabel>
+	</LayoutRow>
+</template>
+
+<style lang="scss">
+.window-title {
+	flex: 0 0 auto;
+	align-items: center;
+	white-space: nowrap;
+	padding: 0 8px;
+}
+</style>