fix nested subscript in math

Author: noamzaks

bun.lock

@@ -32,7 +32,7 @@
     "@tauri-apps/plugin-updater": "~2.7.1",
     "i18next": "^25.6.0",
     "lexical": "^0.38.2",
-    "mathlive": "^0.106.0",
+    "mathlive": "^0.108.2",
     "mousetrap": "^1.6.5",
     "mousetrap-global-bind": "^1.1.0",
     "mousetrap-record": "^1.0.1",

package.json

@@ -102,14 +102,18 @@ export const MathEditor = ({
   useEffect(() => {
     const mf = mathfieldRef.current
     if (mf) {
-      mf.mathVirtualKeyboardPolicy = "manual"
-      mf.keybindings = mf.keybindings.filter(
-        (keybinding) =>
-          !(
-            Array.isArray(keybinding.command) &&
-            keybinding.command[0] === "insert"
-          ),
-      )
+      console.log(mf.keybindings)
+      mf.keybindings = [
+        ...mf.keybindings.filter(
+          (keybinding) =>
+            !(
+              Array.isArray(keybinding.command) &&
+              keybinding.command[0] === "insert"
+            ),
+        ),
+        // TODO: why is this needed?
+        { key: "_", command: ["insert", "_{#0}"] },
+      ]
 
       if (mf.isConnected && !mf.isRegistered) {
         mf.isRegistered = true