chore(files_sharing): fix inconsistent trim() of shareWith

shareWith is below used _trimmed_ to index the field of the
shareWith-to-type mapping; thus, create the key trimmed too.

Why trimming is done here is questionable though.

Refs: #48925

Signed-off-by: Thomas Lehmann <[email protected]>

apps/files_sharing/src/components/SharingInput.vue

@@ -338,7 +338,7 @@ export default {
 					} else { // filter out existing shares
 						// creating an object of uid => type
 						const sharesObj = this.shares.reduce((obj, elem) => {
-							obj[elem.shareWith] = elem.type
+							obj[elem.shareWith.trim()] = elem.type
 							return obj
 						}, {})