Improve performance of demo workspace - Rename getImageAbsoluteURIOrBase64 function (#6282)

### Description

1. This PR is a continuation of a previous PR:
https://github.com/twentyhq/twenty/pull/6201#pullrequestreview-2175601222

2. One test case was removed here:
`packages/twenty-front/src/utils/image/__tests__/getImageAbsoluteURI.test.ts`
because since we are not handling base64 images anymore, the result is
the same of the last test case. Would you rather we update the test
instead?


### Refs

- #3514
- https://github.com/twentyhq/twenty/pull/6201

### Demo


https://www.loom.com/share/4f32b535c77a4d418e319b095d09452c?sid=df34adf8-b013-44ef-b794-d54846f52d2d

Fixes #3514

---------

Co-authored-by: gitstart-twenty <gitstart-twenty@users.noreply.github.com>

packages/twenty-front/src/modules/auth/components/Logo.tsx

@@ -1,6 +1,6 @@
 import styled from '@emotion/styled';
 
-import { getImageAbsoluteURIOrBase64 } from '~/utils/image/getImageAbsoluteURIOrBase64';
+import { getImageAbsoluteURI } from '~/utils/image/getImageAbsoluteURI';
 
 type LogoProps = {
   workspaceLogo?: string | null;
@@ -58,7 +58,7 @@ export const Logo = ({ workspaceLogo }: LogoProps) => {
 
   return (
     <StyledContainer>
-      <StyledMainLogo logo={getImageAbsoluteURIOrBase64(workspaceLogo)} />
+      <StyledMainLogo logo={getImageAbsoluteURI(workspaceLogo)} />
       <StyledTwentyLogoContainer>
         <StyledTwentyLogo src="/icons/android/android-launchericon-192-192.png" />
       </StyledTwentyLogoContainer>