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/settings/workspace/components/WorkspaceLogoUploader.tsx

@@ -6,7 +6,6 @@ import {
   useUpdateWorkspaceMutation,
   useUploadWorkspaceLogoMutation,
 } from '~/generated/graphql';
-import { getImageAbsoluteURIOrBase64 } from '~/utils/image/getImageAbsoluteURIOrBase64';
 import { isUndefinedOrNull } from '~/utils/isUndefinedOrNull';
 
 export const WorkspaceLogoUploader = () => {
@@ -57,7 +56,7 @@ export const WorkspaceLogoUploader = () => {
 
   return (
     <ImageInput
-      picture={getImageAbsoluteURIOrBase64(currentWorkspace?.logo)}
+      picture={currentWorkspace?.logo}
       onUpload={onUpload}
       onRemove={onRemove}
     />