Bug 41985: Fix wording on SIP2 account form: 'Syspref'

Fix spelling on the SIP2 account form to spell 'Syspref'
section heading in full ('System preference overrides').

Test plan:
1. Go to Administration > Patrons and circulation > Self-service
   circulation (SIP2) > Accounts > New account
2. Note the label for the section is "Syspref overrides".
3. Apply the patch.
4. Rebuild everything: yarn build
5. Hard refresh the page.
6. Note that "Syspref..." is now spelt in full as
   "System preference overrides".

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Anneli Österman <anneli.osterman@koha-suomi.fi>
Signed-off-by: Paul Derscheid <paul.derscheid@lmscloud.de>
Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
(cherry picked from commit 5861ecdd0e)
Signed-off-by: Jacob O'Mara <Jacob.omara@openfifth.co.uk>

koha-tmpl/intranet-tmpl/prog/js/vue/components/SIP2/SIP2AccountResource.vue

@@ -855,7 +855,7 @@ export default {
                     ],
                 },
                 hideIn: ["List"],
-                group: __("Syspref overrides"),
+                group: __("System preference overrides"),
                 componentProps: {
                     resourceRelationships: {
                         resourceProperty: "system_preference_overrides",