Add mentions feature to objects in notes (#16373)

Issue #15755 

### Context
As shown in the issue, users should be able to @ objects and have it be
linked to their associated page.

### Changes Made
- Updated the BlockNote schema to include the newly created
MentionInlineContent that displays an object using a RecordChip
- Added the UI for the menu that appears to select the requested object
(similar to this example:
https://www.blocknotejs.org/examples/ui-components/suggestion-menus-slash-menu-component)
- Added a hook to retrieve the data for the UI
- Added the @ trigger to the block editor

### Result 

https://github.com/user-attachments/assets/87dae6a2-ad7a-4642-80b2-8b1751feae24

---------

Co-authored-by: Félix Malfait <felix.malfait@gmail.com>
Co-authored-by: Félix Malfait <felix@twenty.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

packages/twenty-ui/src/components/chip/LinkChip.tsx

@@ -26,6 +26,7 @@ const StyledLink = styled(Link)`
   display: inline-flex;
   text-decoration: none;
   min-width: 0;
+  vertical-align: middle;
 `;
 
 export const LinkChip = ({

packages/twenty-ui/src/navigation/menu/menu-item/components/MenuItemSuggestion.tsx

@@ -10,6 +10,8 @@ export type MenuItemSuggestionProps = {
   LeftIcon?: IconComponent | null;
   withIconContainer?: boolean;
   text: string;
+  contextualText?: string;
+  contextualTextPosition?: 'left' | 'right';
   selected?: boolean;
   className?: string;
   onClick?: (event: MouseEvent<HTMLLIElement>) => void;
@@ -55,6 +57,8 @@ export const MenuItemSuggestion = ({
   LeftIcon,
   withIconContainer = false,
   text,
+  contextualText = undefined,
+  contextualTextPosition = 'left',
   className,
   selected,
   onClick,
@@ -77,6 +81,8 @@ export const MenuItemSuggestion = ({
         <MenuItemLeftContent
           LeftIcon={LeftIcon ?? undefined}
           text={text}
+          contextualText={contextualText}
+          contextualTextPosition={contextualTextPosition}
           withIconContainer={withIconContainer}
         />
       </StyledMenuItemLeftContent>