Moved editors and grid components to their own directories

frontend/src/components/editors/directorychooser.svelte

@@ -0,0 +1,19 @@
+<script>
+  import { OpenDirectory } from '$wails/go/ui/UI';
+
+  export let value = '';
+  export let id = '';
+  export let title = 'Choose a directory';
+
+  async function selectDir() {
+    value = await OpenDirectory(title) || value;
+  }
+</script>
+
+<input type="text" on:pointerdown={selectDir} readonly {id} {value} />
+
+<style>
+  input {
+    cursor: pointer;
+  }
+</style>