Feat: FileManager (#98) (#703)

* feat: add file manager module

- Complete file manager implementation with UI/UX
- Add drive management functionality
- Add file upload/download with progress tracking
- Add stamp integration and handling
- Add bulk operations and context menus

Co-authored-by: Roland Seres <roland.seres90@gmail.com>
Co-authored-by: nidishk <nidishkrishnan45@gmail.com>

src/components/SideBar.tsx

@@ -4,6 +4,7 @@ import { BeeModes } from '@ethersphere/bee-js'
 import { ReactElement, useContext } from 'react'
 import { Link } from 'react-router-dom'
 import FilesIcon from 'remixicon-react/ArrowUpDownLineIcon'
+import FileManagerIcon from 'remixicon-react/FolderOpenLineIcon'
 import DocsIcon from 'remixicon-react/BookOpenLineIcon'
 import ExternalLinkIcon from 'remixicon-react/ExternalLinkLineIcon'
 import GithubIcon from 'remixicon-react/GithubFillIcon'
@@ -82,6 +83,12 @@ export default function SideBar(): ReactElement {
       icon: FilesIcon,
       pathMatcherSubstring: '/files/',
     },
+    {
+      label: 'File Manager',
+      path: ROUTES.FILEMANAGER,
+      icon: FileManagerIcon,
+      pathMatcherSubstring: '/filemanager/',
+    },
     {
       label: 'Account',
       path: ROUTES.ACCOUNT_WALLET,