chore(editor): change edgeless-text default color to black (#12361)

Closes: [BS-3506](https://linear.app/affine-design/issue/BS-3506/edgeless-text-默认改为黑色)

### Dark
<img width="691" alt="Screenshot 2025-05-19 at 19 32 52" src="https://github.com/user-attachments/assets/2927d13b-0300-4293-8f8f-7891fd87a680" />

### Light
<img width="639" alt="Screenshot 2025-05-19 at 19 33 05" src="https://github.com/user-attachments/assets/4429f6f9-b374-4b17-87f4-ae09204f1538" />

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

## Summary by CodeRabbit

- **New Features**
  - Improved edgeless text block styling to support theme-based color, font, and alignment settings.

- **Style**
  - Updated the default text color in edgeless text blocks to black, with support for separate dark and light mode colors.

- **Bug Fixes**
  - Ensured the color picker and block rendering reflect the updated default color.

- **Tests**
  - Adjusted tests and snapshots to expect the new default color and theme-based color structure.

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

tests/affine-local/e2e/blocksuite/edgeless/text.spec.ts

@@ -61,7 +61,7 @@ test('should update color of edgeless text when switching theme', async ({
   let pickedColor = await pickedColorButton.locator('svg').getAttribute('fill');
   let textColor = await getEdgelessTextColor(text);
 
-  await expect(pickedColorButton.getByLabel('MediumBlue')).toHaveCount(1);
+  await expect(pickedColorButton.getByLabel('Black')).toHaveCount(1);
   expect(pickedColor).toBe(textColor);
 
   const blackColorButton = colorPicker

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/min-width-limit-for-embed-block-add-linked-doc.json

@@ -34,7 +34,10 @@
           "flavour": "affine:edgeless-text",
           "id": "4",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/min-width-limit-for-embed-block-drag.json

@@ -26,7 +26,10 @@
           "flavour": "affine:edgeless-text",
           "id": "4",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/min-width-limit-for-embed-block-init.json

@@ -25,7 +25,10 @@
           "flavour": "affine:edgeless-text",
           "id": "4",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/min-width-limit-for-embed-block-link-to-card-min-width.json

@@ -26,7 +26,10 @@
           "flavour": "affine:edgeless-text",
           "id": "4",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/min-width-limit-for-embed-block-link-to-card.json

@@ -26,7 +26,10 @@
           "flavour": "affine:edgeless-text",
           "id": "4",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/press-backspace-at-the-start-of-first-line-when-edgeless-text-exist-finial.json

@@ -28,7 +28,10 @@
           "flavour": "affine:edgeless-text",
           "id": "3",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/press-backspace-at-the-start-of-first-line-when-edgeless-text-exist-note-empty.json

@@ -28,7 +28,10 @@
           "flavour": "affine:edgeless-text",
           "id": "3",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",

tests/blocksuite/snapshots/edgeless/edgeless-text.spec.ts/press-backspace-at-the-start-of-first-line-when-edgeless-text-exist-note-not-empty.json

@@ -28,7 +28,10 @@
           "flavour": "affine:edgeless-text",
           "id": "3",
           "props": {
-            "color": "#84cfff",
+            "color": {
+              "dark": "#ffffff",
+              "light": "#000000"
+            },
             "fontFamily": "blocksuite:surface:Inter",
             "fontStyle": "normal",
             "fontWeight": "400",