chore(editor): mobile database editing experimental flag (#13425)

#### PR Dependency Tree


* **PR #13425** 👈

This tree was auto-generated by
[Charcoal](https://github.com/danerwilliams/charcoal)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

* **New Features**
* Introduced a feature flag to enable or disable mobile database
editing.
* Added user notifications on mobile when attempting to edit databases
if the feature is not enabled.

* **Bug Fixes**
* Prevented addition of filters and group actions in readonly or
restricted mobile editing states.
* Fixed issues with selection handling in mobile Kanban and Table views
by ensuring correct context binding.

* **Style**
  * Improved toast notification styling to allow dynamic height.
* Adjusted mobile table view styles for better compatibility on iOS
devices.

* **Chores**
* Updated feature flag configuration to support mobile database editing
control.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

packages/frontend/core/src/modules/feature-flag/constant.ts

@@ -288,6 +288,14 @@ export const AFFINE_FLAGS = {
     configurable: isCanaryBuild,
     defaultState: false,
   },
+  enable_mobile_database_editing: {
+    category: 'blocksuite',
+    bsFlag: 'enable_mobile_database_editing',
+    displayName: 'Enable Mobile Database Editing',
+    description: 'Enable mobile database editing',
+    configurable: isMobile,
+    defaultState: false,
+  },
 } satisfies { [key in string]: FlagInfo };
 
 // oxlint-disable-next-line no-redeclare