[BUGFIX] Make JS url encoding utf aware

Replace the deprecated function JS `escape` with `encodeURIComponent`.

Releases: master, 8.7
Resolves: #83341
Change-Id: Ia9fdd44c7b06f63ab867f692e07193ab23f535a3
Reviewed-on: https://review.typo3.org/55144


Tested-by: TYPO3com <no-reply@typo3.com>
Reviewed-by: Daniel Huf <huf.daniel@gmail.com>
Tested-by: Daniel Huf <huf.daniel@gmail.com>
Reviewed-by: Andreas Fernandez <typo3@scripting-base.de>
Tested-by: Andreas Fernandez <typo3@scripting-base.de>

typo3/sysext/backend/Resources/Public/JavaScript/backend.js

@@ -36,7 +36,7 @@ function jump(url, modName, mainModName, pageId) {
  * Function similar to PHPs  rawurlencode();
  */
 function rawurlencode(str) {
-	var output = escape(str);
+	var output = encodeURIComponent(str);
 	output = str_replace("*","%2A", output);
 	output = str_replace("+","%2B", output);
 	output = str_replace("/","%2F", output);