fix(editor): presist selections on content change

Author: antfu

package.json

@@ -35,6 +35,7 @@
     "@slidev/cli": "workspace:*",
     "@slidev/parser": "workspace:*",
     "@types/cli-progress": "^3.9.1",
+    "@types/codemirror": "^5.60.0",
     "@types/connect": "^3.4.34",
     "@types/file-saver": "^2.0.2",
     "@types/fs-extra": "^9.0.11",

packages/client/setup/codemirror.ts

@@ -35,7 +35,9 @@ export async function useCodeMirror(
     (v) => {
       if (v !== cm.getValue()) {
         skip = true
+        const selections = cm.listSelections()
         cm.replaceRange(v, cm.posFromIndex(0), cm.posFromIndex(Infinity))
+        cm.setSelections(selections)
       }
     },
     { immediate: true },