Rename index.css to style.css

Make the tab completion on web/in<Tab> give the TypeScript code instead
of annoyingly stopping at the extension.

packages/web_ui/src/bootstrap.tsx

@@ -1,4 +1,4 @@
-import "./index.css";
+import "./style.css";
 
 import React from "react";
 import { createRoot } from "react-dom/client";

plugins/inventory_sync/web/index.tsx

@@ -3,7 +3,7 @@ import React, { useContext, useEffect, useState } from "react";
 import { BaseWebPlugin, PageLayout, ControlContext } from "@clusterio/web_ui";
 import { DatabaseStatsRequest, DatabaseStatsResponse } from "../messages";
 
-import "./index.css";
+import "./style.css";
 
 function InventoryPage() {
 	let control = useContext(ControlContext);

plugins/player_auth/web/index.tsx

@@ -3,7 +3,7 @@ import React, { useEffect, useState } from "react";
 import { BaseWebPlugin, notifyErrorHandler } from "@clusterio/web_ui";
 import { Button, Form, Input, Spin, Typography } from "antd";
 
-import "./index.css";
+import "./style.css";
 
 const { Paragraph, Text } = Typography;
 

plugins/subspace_storage/web/index.tsx

@@ -8,7 +8,7 @@ import {
 } from "@clusterio/web_ui";
 import { GetStorageRequest, Item, SetStorageSubscriptionRequest, UpdateStorageEvent } from "../messages";
 
-import "./index.css";
+import "./style.css";
 
 const { Paragraph } = Typography;