feat(core): at menu journal entries (#8877) (#8935)

fix AF-1790
fix AF-1774
added `DateSelectorDialog` for selecting a date through blocksuite;
added `AtMenuConfigService` for constructing the at menu config
fix AF-1776
fix PD-1942

resubmitted to replace #8877

tools/cli/src/webpack/config.ts

@@ -149,6 +149,12 @@ export const createConfiguration: (
       alias: {
         yjs: join(workspaceRoot, 'node_modules', 'yjs'),
         lit: join(workspaceRoot, 'node_modules', 'lit'),
+        '@preact/signals-core': join(
+          workspaceRoot,
+          'node_modules',
+          '@preact',
+          'signals-core'
+        ),
       },
     },