feat(editor): rich text package (#10689)

This PR performs a significant architectural refactoring by extracting rich text functionality into a dedicated package. Here are the key changes:

1. **New Package Creation**
- Created a new package `@blocksuite/affine-rich-text` to house rich text related functionality
- Moved rich text components, utilities, and types from `@blocksuite/affine-components` to this new package

2. **Dependency Updates**
- Updated multiple block packages to include the new `@blocksuite/affine-rich-text` as a direct dependency:
  - block-callout
  - block-code
  - block-database
  - block-edgeless-text
  - block-embed
  - block-list
  - block-note
  - block-paragraph

3. **Import Path Updates**
- Refactored all imports that previously referenced rich text functionality from `@blocksuite/affine-components/rich-text` to now use `@blocksuite/affine-rich-text`
- Updated imports for components like:
  - DefaultInlineManagerExtension
  - RichText types and interfaces
  - Text manipulation utilities (focusTextModel, textKeymap, etc.)
  - Reference node components and providers

4. **Build Configuration Updates**
- Added references to the new rich text package in the `tsconfig.json` files of all affected packages
- Maintained workspace dependencies using the `workspace:*` version specifier

The primary motivation appears to be:
1. Better separation of concerns by isolating rich text functionality
2. Improved maintainability through more modular package structure
3. Clearer dependencies between packages
4. Potential for better tree-shaking and bundle optimization

This is primarily an architectural improvement that should make the codebase more maintainable and better organized.

blocksuite/affine/rich-text/src/keymap/basic.ts

@@ -0,0 +1,79 @@
+import {
+  BlockSelection,
+  type BlockStdScope,
+  TextSelection,
+  type UIEventHandler,
+} from '@blocksuite/block-std';
+
+import {
+  focusTextModel,
+  getInlineEditorByModel,
+  selectTextModel,
+} from '../dom.js';
+
+export const textCommonKeymap = (
+  std: BlockStdScope
+): Record<string, UIEventHandler> => {
+  return {
+    ArrowUp: () => {
+      const text = std.selection.find(TextSelection);
+      if (!text) return;
+      const inline = getInlineEditorByModel(std.host, text.from.blockId);
+      if (!inline) return;
+      return !inline.isFirstLine(inline.getInlineRange());
+    },
+    ArrowDown: () => {
+      const text = std.selection.find(TextSelection);
+      if (!text) return;
+      const inline = getInlineEditorByModel(std.host, text.from.blockId);
+      if (!inline) return;
+      return !inline.isLastLine(inline.getInlineRange());
+    },
+    Escape: ctx => {
+      const text = std.selection.find(TextSelection);
+      if (!text) return;
+
+      selectBlock(std, text.from.blockId);
+      ctx.get('keyboardState').raw.stopPropagation();
+      return true;
+    },
+    'Mod-a': ctx => {
+      const text = std.selection.find(TextSelection);
+      if (!text) return;
+
+      const model = std.store.getBlock(text.from.blockId)?.model;
+      if (!model || !model.text) return;
+
+      ctx.get('keyboardState').raw.preventDefault();
+
+      if (
+        text.from.index === 0 &&
+        text.from.length === model.text.yText.length
+      ) {
+        selectBlock(std, text.from.blockId);
+        return true;
+      }
+
+      selectTextModel(std, text.from.blockId, 0, model.text.yText.length);
+      return true;
+    },
+    Enter: ctx => {
+      const blocks = std.selection.filter(BlockSelection);
+      const blockId = blocks.at(-1)?.blockId;
+
+      if (!blockId) return;
+      const model = std.store.getBlock(blockId)?.model;
+      if (!model || !model.text) return;
+
+      ctx.get('keyboardState').raw.preventDefault();
+      focusTextModel(std, blockId, model.text.yText.length);
+      return true;
+    },
+  };
+};
+
+function selectBlock(std: BlockStdScope, blockId: string) {
+  std.selection.setGroup('note', [
+    std.selection.create(BlockSelection, { blockId }),
+  ]);
+}