Update to eslint 10 (#36925)

- Enable a few more rules, fix issues. The 2 `value` issues are
false-positives.
- Add exact types for `window.pageData` and
`window.notificationSettings`.
- peerDependencyRules for eslint-plugin-github unrestricted, the plugin
works in v10, but does not declare compatibility, pending
https://github.com/github/eslint-plugin-github/issues/680.
- Added
[eslint-plugin-de-morgan](https://github.com/azat-io/eslint-plugin-de-morgan),
no violations.

---------

Signed-off-by: silverwind <me@silverwind.io>
Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Claude (Opus 4.6) <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

web_src/js/modules/diff-file.ts

@@ -17,7 +17,7 @@ export type DiffTreeEntry = {
   ParentEntry?: DiffTreeEntry,
 };
 
-type DiffFileTreeData = {
+export type DiffFileTreeData = {
   TreeRoot: DiffTreeEntry,
 };
 
@@ -33,7 +33,7 @@ type DiffFileTree = {
 let diffTreeStoreReactive: Reactive<DiffFileTree>;
 export function diffTreeStore() {
   if (!diffTreeStoreReactive) {
-    diffTreeStoreReactive = reactiveDiffTreeStore(pageData.DiffFileTree, pageData.FolderIcon, pageData.FolderOpenIcon);
+    diffTreeStoreReactive = reactiveDiffTreeStore(pageData.DiffFileTree!, pageData.FolderIcon!, pageData.FolderOpenIcon!);
   }
   return diffTreeStoreReactive;
 }