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/conversion.ts

@@ -0,0 +1,136 @@
+import {
+  BulletedListIcon,
+  CheckBoxIcon,
+  CodeBlockIcon,
+  DividerIcon,
+  Heading1Icon,
+  Heading2Icon,
+  Heading3Icon,
+  Heading4Icon,
+  Heading5Icon,
+  Heading6Icon,
+  NumberedListIcon,
+  QuoteIcon,
+  TextIcon,
+} from '@blocksuite/affine-components/icons';
+import type { TemplateResult } from 'lit';
+
+/**
+ * Text primitive entries used in slash menu and format bar,
+ * which are also used for registering hotkeys for converting block flavours.
+ */
+export interface TextConversionConfig {
+  flavour: string;
+  type?: string;
+  name: string;
+  description?: string;
+  hotkey: string[] | null;
+  icon: TemplateResult<1>;
+}
+
+export const textConversionConfigs: TextConversionConfig[] = [
+  {
+    flavour: 'affine:paragraph',
+    type: 'text',
+    name: 'Text',
+    description: 'Start typing with plain text.',
+    hotkey: [`Mod-Alt-0`, `Mod-Shift-0`],
+    icon: TextIcon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h1',
+    name: 'Heading 1',
+    description: 'Headings in the largest font.',
+    hotkey: [`Mod-Alt-1`, `Mod-Shift-1`],
+    icon: Heading1Icon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h2',
+    name: 'Heading 2',
+    description: 'Headings in the 2nd font size.',
+    hotkey: [`Mod-Alt-2`, `Mod-Shift-2`],
+    icon: Heading2Icon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h3',
+    name: 'Heading 3',
+    description: 'Headings in the 3rd font size.',
+    hotkey: [`Mod-Alt-3`, `Mod-Shift-3`],
+    icon: Heading3Icon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h4',
+    name: 'Heading 4',
+    description: 'Headings in the 4th font size.',
+    hotkey: [`Mod-Alt-4`, `Mod-Shift-4`],
+    icon: Heading4Icon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h5',
+    name: 'Heading 5',
+    description: 'Headings in the 5th font size.',
+    hotkey: [`Mod-Alt-5`, `Mod-Shift-5`],
+    icon: Heading5Icon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'h6',
+    name: 'Heading 6',
+    description: 'Headings in the 6th font size.',
+    hotkey: [`Mod-Alt-6`, `Mod-Shift-6`],
+    icon: Heading6Icon,
+  },
+  {
+    flavour: 'affine:list',
+    type: 'bulleted',
+    name: 'Bulleted List',
+    description: 'Create a bulleted list.',
+    hotkey: [`Mod-Alt-8`, `Mod-Shift-8`],
+    icon: BulletedListIcon,
+  },
+  {
+    flavour: 'affine:list',
+    type: 'numbered',
+    name: 'Numbered List',
+    description: 'Create a numbered list.',
+    hotkey: [`Mod-Alt-9`, `Mod-Shift-9`],
+    icon: NumberedListIcon,
+  },
+  {
+    flavour: 'affine:list',
+    type: 'todo',
+    name: 'To-do List',
+    description: 'Add tasks to a to-do list.',
+    hotkey: null,
+    icon: CheckBoxIcon,
+  },
+  {
+    flavour: 'affine:code',
+    type: undefined,
+    name: 'Code Block',
+    description: 'Code snippet with formatting.',
+    hotkey: [`Mod-Alt-c`],
+    icon: CodeBlockIcon,
+  },
+  {
+    flavour: 'affine:paragraph',
+    type: 'quote',
+    name: 'Quote',
+    description: 'Add a blockquote for emphasis.',
+    hotkey: null,
+    icon: QuoteIcon,
+  },
+  {
+    flavour: 'affine:divider',
+    type: 'divider',
+    name: 'Divider',
+    description: 'Visually separate content.',
+    hotkey: [`Mod-Alt-d`, `Mod-Shift-d`],
+    icon: DividerIcon,
+  },
+];