upgrade to rollup-plugin-svelte 7.0

see sveltejs/sapper-template#289
appears to require svelte 3.30.1 or higher

Author: rdela

package.json

@@ -30,7 +30,7 @@
     "@babel/runtime": "7.12.5",
     "@rollup/plugin-babel": "5.2.2",
     "@rollup/plugin-commonjs": "17.0.0",
-    "@rollup/plugin-node-resolve": "10.0.0",
+    "@rollup/plugin-node-resolve": "11.0.0",
     "@rollup/plugin-replace": "2.3.4",
     "cypress": "6.0.1",
     "eslint": "7.14.0",

rollup.config.js

@@ -26,9 +26,10 @@ export default {
 				'process.env.NODE_ENV': JSON.stringify(mode)
 			}),
 			svelte({
-				dev,
-				hydratable: true,
-				emitCss: true
+				compilerOptions: {
+					dev,
+					hydratable: true
+				}
 			}),
 			resolve({
 				browser: true,
@@ -71,9 +72,12 @@ export default {
 				'process.env.NODE_ENV': JSON.stringify(mode)
 			}),
 			svelte({
-				generate: 'ssr',
-				hydratable: true,
-				dev
+				compilerOptions: {
+					dev,
+					generate: 'ssr',
+					hydratable: true
+				},
+				emitCss: false
 			}),
 			resolve({
 				dedupe: ['svelte']