Activity as standard object (#6219)

In this PR I layout the first steps to migrate Activity to a traditional
Standard objects

Since this is a big transition, I'd rather split it into several
deployments / PRs

<img width="1512" alt="image"
src="https://github.com/user-attachments/assets/012e2bbf-9d1b-4723-aaf6-269ef588b050">

---------

Co-authored-by: Charles Bochet <charles@twenty.com>
Co-authored-by: bosiraphael <71827178+bosiraphael@users.noreply.github.com>
Co-authored-by: Weiko <corentin@twenty.com>
Co-authored-by: Faisal-imtiyaz123 <142205282+Faisal-imtiyaz123@users.noreply.github.com>
Co-authored-by: Prateek Jain <prateekj1171998@gmail.com>

packages/twenty-front/src/modules/ui/input/editor/utils/__tests__/getFirstNonEmptyLineOfRichText.test.tsx

@@ -0,0 +1,77 @@
+import { PartialBlock } from '@blocknote/core';
+import { getFirstNonEmptyLineOfRichText } from '../getFirstNonEmptyLineOfRichText';
+
+describe('getFirstNonEmptyLineOfRichText', () => {
+  it('should return an empty string if the input is null', () => {
+    const result = getFirstNonEmptyLineOfRichText(null);
+    expect(result).toBe('');
+  });
+
+  it('should return an empty string if the input is an empty array', () => {
+    const result = getFirstNonEmptyLineOfRichText([]);
+    expect(result).toBe('');
+  });
+
+  it('should return the first non-empty line of text', () => {
+    const input: PartialBlock[] = [
+      { content: [{ text: '', type: 'text', styles: {} }] },
+      { content: [{ text: '   ', type: 'text', styles: {} }] },
+      { content: [{ text: 'First non-empty line', type: 'text', styles: {} }] },
+      { content: [{ text: 'Second line', type: 'text', styles: {} }] },
+    ];
+    const result = getFirstNonEmptyLineOfRichText(input);
+    expect(result).toBe('First non-empty line');
+  });
+
+  it('should return an empty string if all lines are empty', () => {
+    const input: PartialBlock[] = [
+      { content: [{ text: '', type: 'text', styles: {} }] },
+      { content: [{ text: '   ', type: 'text', styles: {} }] },
+      { content: [{ text: '\n', type: 'text', styles: {} }] },
+    ];
+    const result = getFirstNonEmptyLineOfRichText(input);
+    expect(result).toBe('');
+  });
+
+  it('should handle mixed content correctly', () => {
+    const input: PartialBlock[] = [
+      { content: [{ text: '', type: 'text', styles: {} }] },
+      { content: [{ text: '   ', type: 'text', styles: {} }] },
+      { content: [{ text: 'First non-empty line', type: 'text', styles: {} }] },
+      { content: [{ text: '', type: 'text', styles: {} }] },
+      {
+        content: [{ text: 'Second non-empty line', type: 'text', styles: {} }],
+      },
+    ];
+    const result = getFirstNonEmptyLineOfRichText(input);
+    expect(result).toBe('First non-empty line');
+  });
+
+  it('should handle content with multiple text objects correctly', () => {
+    const input: PartialBlock[] = [
+      {
+        content: [
+          { text: '', type: 'text', styles: {} },
+          { text: '   ', type: 'text', styles: {} },
+        ],
+      },
+      {
+        content: [
+          { text: 'First non-empty line', type: 'text', styles: {} },
+          { text: 'Second line', type: 'text', styles: {} },
+        ],
+      },
+    ];
+    const result = getFirstNonEmptyLineOfRichText(input);
+    expect(result).toBe('First non-empty line');
+  });
+
+  it('should handle content with undefined or null content', () => {
+    const input: PartialBlock[] = [
+      { content: undefined },
+      { content: [{ text: 'First non-empty line', type: 'text', styles: {} }] },
+    ];
+    const result = getFirstNonEmptyLineOfRichText(input);
+    expect(result).toBe('First non-empty line');
+  });
+});

packages/twenty-front/src/modules/ui/input/editor/utils/getFirstNonEmptyLineOfRichText.ts

@@ -0,0 +1,23 @@
+import { PartialBlock } from '@blocknote/core';
+import { isUndefinedOrNull } from '~/utils/isUndefinedOrNull';
+
+export const getFirstNonEmptyLineOfRichText = (
+  fieldValue: PartialBlock[] | null,
+): string => {
+  if (fieldValue === null) {
+    return '';
+  }
+  for (const node of fieldValue) {
+    if (!isUndefinedOrNull(node.content)) {
+      const contentArray = node.content as Array<{ text: string }>;
+      if (contentArray.length > 0) {
+        for (const content of contentArray) {
+          if (content.text.trim() !== '') {
+            return content.text;
+          }
+        }
+      }
+    }
+  }
+  return '';
+};