Fix - Input box shadow, left icon focus and new size variant (#9902)

Favorite folder input needs to be 28px --- added a new sizeVariant 
Removed box shadow completely -- checked with @Bonapara 
The left icon used to be of color light on focus -- added a state to
check if input is focused

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Co-authored-by: Charles Bochet <charlesBochet@users.noreply.github.com>

packages/twenty-front/src/modules/ui/navigation/bread-crumb/components/EditableBreadcrumbItem.tsx

@@ -36,7 +36,6 @@ const StyledButton = styled('button')`
   text-decoration: none;
   text-overflow: ellipsis;
   white-space: nowrap;
-
   :hover {
     background: ${({ theme }) => theme.background.transparent.light};
   }

packages/twenty-front/src/modules/ui/navigation/navigation-drawer/components/NavigationDrawerInput.tsx

@@ -78,6 +78,7 @@ export const NavigationDrawerInput = ({
       onChange={onChange}
       placeholder={placeholder}
       onFocus={handleFocus}
+      sizeVariant="md"
       fullWidth
       autoFocus
     />