fix: update sliding sync known issues link to SableClient/Sable#39

[Just-Insane]

Description

The "Known issues" link in the Experimental Settings page for Sliding Sync pointed to the old repository (7w1/sable#146). This updates it to the correct issue in the current repository.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

AI disclosure:

• Partially AI assisted (clarify which code was AI assisted and briefly explain what it does).
• Fully AI generated (explain what all the generated code does in moderate detail).

AI was used to locate the old link in the codebase. The change itself is a one-line URL update in General.tsx — no logic is involved.

[Just-Insane]

Wha... why are there quality check issues?? It's literally 1 line!

[dozro]

Wha... why are there quality check issues?? It's literally 1 line!

the line is too long

[Just-Insane]

Wha... why are there quality check issues?? It's literally 1 line!

the line is too long

:( sadge

[Stealthii]

Just split similar to other links in this file:

diff --git a/src/app/features/settings/general/General.tsx b/src/app/features/settings/general/General.tsx
index e0f8a84d..ff7acbf5 100644
--- a/src/app/features/settings/general/General.tsx
+++ b/src/app/features/settings/general/General.tsx
@@ -1119,7 +1119,11 @@ export function Sync() {
                   More info/Documentation
                 </a>
                 .{' '}
-                <a href="https://github.com/SableClient/Sable/issues/39" target="_blank" rel="noreferrer">
+                <a
+                  href="https://github.com/SableClient/Sable/issues/39"
+                  target="_blank"
+                  rel="noreferrer"
+                >
                   Known issues (Sable GitHub)
                 </a>
                 .