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/object-metadata/utils/getAvatarUrl.ts

@@ -2,7 +2,7 @@ import { CoreObjectNameSingular } from '@/object-metadata/types/CoreObjectNameSi
 import { FieldMetadataItem } from '@/object-metadata/types/FieldMetadataItem';
 import { ObjectRecord } from '@/object-record/types/ObjectRecord';
 import { getLogoUrlFromDomainName } from '~/utils';
-import { getImageAbsoluteURIOrBase64 } from '~/utils/image/getImageAbsoluteURIOrBase64';
+import { getImageAbsoluteURI } from '~/utils/image/getImageAbsoluteURI';
 import { isDefined } from '~/utils/isDefined';
 
 import { getImageIdentifierFieldValue } from './getImageIdentifierFieldValue';
@@ -21,7 +21,7 @@ export const getAvatarUrl = (
   }
 
   if (objectNameSingular === CoreObjectNameSingular.Person) {
-    return getImageAbsoluteURIOrBase64(record.avatarUrl) ?? '';
+    return getImageAbsoluteURI(record.avatarUrl) ?? '';
   }
 
   const imageIdentifierFieldValue = getImageIdentifierFieldValue(