refactor: remove lock icon from individual bookmarks

- Private bookmarks are now grouped in 'Private Bookmarks' section
- No need for redundant lock icon on each individual bookmark
- Cleaner UI with less visual clutter
- Removed faUserLock import and conditional rendering from all three views

src/components/BookmarkViews/CardView.tsx

@@ -1,7 +1,7 @@
 import React, { useState } from 'react'
 import { Link } from 'react-router-dom'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
-import { faUserLock, faChevronDown, faChevronUp } from '@fortawesome/free-solid-svg-icons'
+import { faChevronDown, faChevronUp } from '@fortawesome/free-solid-svg-icons'
 import { IconDefinition } from '@fortawesome/fontawesome-svg-core'
 import { IndividualBookmark } from '../../types/bookmarks'
 import { formatDate, renderParsedContent } from '../../utils/bookmarkUtils'
@@ -91,9 +91,6 @@ export const CardView: React.FC<CardViewProps> = ({
       <div className="bookmark-header">
         <span className="bookmark-type">
           <FontAwesomeIcon icon={contentTypeIcon} className="content-type-icon" />
-          {bookmark.isPrivate && (
-            <FontAwesomeIcon icon={faUserLock} className="bookmark-visibility private" />
-          )}
         </span>
         
         {eventNevent ? (

src/components/BookmarkViews/CompactView.tsx

@@ -1,6 +1,5 @@
 import React from 'react'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
-import { faUserLock } from '@fortawesome/free-solid-svg-icons'
 import { IconDefinition } from '@fortawesome/fontawesome-svg-core'
 import { IndividualBookmark } from '../../types/bookmarks'
 import { formatDateCompact } from '../../utils/bookmarkUtils'
@@ -54,9 +53,6 @@ export const CompactView: React.FC<CompactViewProps> = ({
       >
         <span className="bookmark-type-compact">
           <FontAwesomeIcon icon={contentTypeIcon} className="content-type-icon" />
-          {bookmark.isPrivate && (
-            <FontAwesomeIcon icon={faUserLock} className="bookmark-visibility private" />
-          )}
         </span>
         {displayText && (
           <div className="compact-text">

src/components/BookmarkViews/LargeView.tsx

@@ -1,7 +1,6 @@
 import React from 'react'
 import { Link } from 'react-router-dom'
 import { FontAwesomeIcon } from '@fortawesome/react-fontawesome'
-import { faUserLock } from '@fortawesome/free-solid-svg-icons'
 import { IconDefinition } from '@fortawesome/fontawesome-svg-core'
 import { IndividualBookmark } from '../../types/bookmarks'
 import { formatDate } from '../../utils/bookmarkUtils'
@@ -96,9 +95,6 @@ export const LargeView: React.FC<LargeViewProps> = ({
         <div className="large-footer">
           <span className="bookmark-type-large">
             <FontAwesomeIcon icon={contentTypeIcon} className="content-type-icon" />
-            {bookmark.isPrivate && (
-              <FontAwesomeIcon icon={faUserLock} className="bookmark-visibility private" />
-            )}
           </span>
           <span className="large-author">
             <Link