fix: add urls with space

[codomposer]

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What does this PR aim to accomplish?:

Closes #3364

Fix: URLs with spaces can now be added to blocklist/allowlist

Problem

• URLs containing spaces were being incorrectly split into multiple parts
• Attempting to use %20 encoding resulted in double-encoding to %2520
• Root cause: The input splitting regex /[\s,]+/ treated spaces as delimiters

How does this PR accomplish the above?:

Solution

• Changed split pattern from /[\s,]+/ to /[,\n]+/ in groups-lists.js
• URLs with spaces are now preserved correctly
• Multiple URLs can still be added using commas or newlines as separators
• Updated UI hint to reflect the new behavior

Link documentation PRs if any are needed to support this PR:

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[rrobgill]

This may not be the best approach for a couple of reasons.

URLs cannot contain spaces but they can contain commas (https://datatracker.ietf.org/doc/html/rfc3986#section-2).

Other fields in the webUI use both spaces and newlines as field delimiters, this change would have different behaviour in different text input fields.

./groups-clients.js:  // Check if the user wants to add multiple IPs (space or newline separated)
./groups-lists.js:  // Check if the user wants to add multiple domains (space or newline separated)
./groups-domains.js:  // Check if the user wants to add multiple domains (space or newline separated)
./groups.js:  // Check if the user wants to add multiple groups (space or newline separated)

There seems to be a simpler fix which to allow people to enter URLs containing %20 for a "space", without interfering with other URLs or altering the accepted delimiters:

diff --git a/scripts/js/groups-lists.js b/scripts/js/groups-lists.js
index 47c3db92..4b700582 100644
--- a/scripts/js/groups-lists.js
+++ b/scripts/js/groups-lists.js
@@ -584,7 +584,7 @@ function editList() {
   utils.disableAll();
   utils.showAlert("info", "", "Editing address...", address);
   $.ajax({
-    url: document.body.dataset.apiurl + "/lists/" + encodeURIComponent(address) + "?type=" + type,
+    url: document.body.dataset.apiurl + "/lists/" + encodeURIComponent(address).replace(/%2520/g, "%20") + "?type=" + type,
     method: "put",
     dataType: "json",
     processData: false,

[codomposer]

@rrobgill
can you check the update again?

[rrobgill]

@rrobgill can you check the update again?

New approach tests ok for me.

[codomposer]

@rrobgill can you check the update again?

New approach tests ok for me.

then can you merge it?

[codomposer]

@rrobgill

[PromoFaux]

@codomposer please don't ping people for merge - PRs are prioritised on a "when we can get to it" basis, which is just the unfortunate nature of having to balance "real jobs" and this one.

(besides, rrobgill is a contributor but does not have merge rights)