fix(share): say 'Updated access' when changing a grant's mode

Changing someone's access level reported 'Shared with X', the same
message as a fresh grant, which reads as if a new share happened.
Both share dialogs now confirm mode changes with a dedicated
'Updated access for X' message. The UIWindowShare call also drops the
html_encode() around the recipient - i18n() already encodes
interpolations, so the wrapper double-encoded.

src/gui/src/UI/Dashboard/UIShareModal.js

@@ -342,7 +342,7 @@ export default function UIShareModal ({ path: item_path, name, owner, fsentry, $
         $(this).prop('disabled', true);
         try {
             await puter.fs.share({ path: item_path, recipient: holder, mode });
-            show_success(i18n('share_shared_with', { recipient: holder }));
+            show_success(i18n('share_access_updated', { recipient: holder }));
             invalidate_shared_roots();
             await refresh();
         } catch (err) {

src/gui/src/UI/UIWindowShare.js

@@ -202,7 +202,7 @@ async function UIWindowShare (options) {
         $(this).prop('disabled', true);
         try {
             await puter.fs.share({ path: item_path, recipient: holder, mode });
-            show_success(i18n('share_shared_with', { recipient: html_encode(holder) }));
+            show_success(i18n('share_access_updated', { recipient: holder }));
             invalidate_shared_roots();
             await refresh();
         } catch (e) {

src/gui/src/i18n/translations/en.js

@@ -391,6 +391,7 @@ const en = {
         share_done: 'Done',
         share_failed: 'Could not share this item.',
         share_shared_with: 'Shared with {{recipient}}',
+        share_access_updated: 'Updated access for {{recipient}}',
         share_access_removed: 'Removed {{recipient}}',
         share_confirm_remove: 'Remove {{recipient}}’s access to this item?',
         share_remove: 'Remove',