[BUGFIX] Fix false icons widths in FormEngine IconSelect

The width of Icons in TCA selects adjusted in https://review.typo3.org/c/55568/
has been corrected to have Icons use their proper width (128px) again.

Resolves: #83840
Releases: master, 8.7
Change-Id: Ia1e6dee77012b772c3fd5cae7199b075c66389d7
Reviewed-on: https://review.typo3.org/55645
Reviewed-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: Anja Leichsenring <aleichsenring@ab-softlab.de>
Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Riccardo De Contardi <erredeco@gmail.com>
Tested-by: Riccardo De Contardi <erredeco@gmail.com>
Reviewed-by: Benjamin Kott <benjamin.kott@outlook.com>
Tested-by: Benjamin Kott <benjamin.kott@outlook.com>

Build/Resources/Public/Sass/typo3/_element_tceforms.scss

@@ -284,13 +284,13 @@ div.t3-form-field-container:first-child .t3-form-field-label-flex {
     .item {
         float: left;
         padding: 6px;
-        max-width: 128px;
+        max-width: 140px;
         border-left: 1px solid transparent;
         border-right: 1px solid transparent;
 
         img {
-            max-width: 116px;
-            max-height: 116px;
+            max-width: 128px;
+            max-height: 128px;
         }
     }