fix(mobile): incorrect height of keyboard toolbar in ios (#8653)

### What Changes:
- Fix keyboard height calculation with the `KeyboardToolBarConfig.useScreenHeight = true`. More detials in: https://github.com/toeverything/blocksuite/pull/8645
- Add safe bottom padding for shrinked keyboard toolbar
- Add `VirtualKeyboard` polyfill. Close [AF-1573](https://linear.app/affine-design/issue/AF-1573/virtualkeyboard-polyfill-with-capacitor)
  - Since the `@capacitor/keyboard` dose not implement the `Keyboard.show()` method, this polyfill is not enabled now.

packages/frontend/apps/ios/App/Podfile.lock

@@ -6,6 +6,8 @@ PODS:
   - CapacitorBrowser (6.0.3):
     - Capacitor
   - CapacitorCordova (6.1.2)
+  - CapacitorKeyboard (6.0.2):
+    - Capacitor
   - CryptoSwift (1.8.3)
 
 DEPENDENCIES:
@@ -13,6 +15,7 @@ DEPENDENCIES:
   - "CapacitorApp (from `../../../../../node_modules/@capacitor/app`)"
   - "CapacitorBrowser (from `../../../../../node_modules/@capacitor/browser`)"
   - "CapacitorCordova (from `../../../../../node_modules/@capacitor/ios`)"
+  - "CapacitorKeyboard (from `../../../../../node_modules/@capacitor/keyboard`)"
   - CryptoSwift (~> 1.8.3)
 
 SPEC REPOS:
@@ -28,14 +31,17 @@ EXTERNAL SOURCES:
     :path: "../../../../../node_modules/@capacitor/browser"
   CapacitorCordova:
     :path: "../../../../../node_modules/@capacitor/ios"
+  CapacitorKeyboard:
+    :path: "../../../../../node_modules/@capacitor/keyboard"
 
 SPEC CHECKSUMS:
   Capacitor: 679f9673fdf30597493a6362a5d5bf233d46abc2
   CapacitorApp: 0bc633b4eae40a1f32cd2834788fad3bc42da6a1
   CapacitorBrowser: aab1ed943b01c0365c4810538a8b3477e2d9f72e
   CapacitorCordova: f48c89f96c319101cd2f0ce8a2b7449b5fb8b3dd
+  CapacitorKeyboard: 2700f9b18687be021e28b5a09b59eb151a46d5e0
   CryptoSwift: 967f37cea5a3294d9cce358f78861652155be483
 
-PODFILE CHECKSUM: 763e3dac392c17bcf42dab97a9225ea234e8416a
+PODFILE CHECKSUM: 1b0d3fe81862c0e9ce712ddd0c5a0accd0097698
 
-COCOAPODS: 1.15.2
+COCOAPODS: 1.16.1