* fix: hide browser pin on non-Electron web
Browser is desktop-only, but the pinned shortcut bar still rendered a
New browser pin on web where createBrowser is a silent no-op.
Skip browser pins in usePinnedLaunchers when not Electron, and drop
browser from default pinned targets so new users only get terminal.
* fix(app): preserve browser pin defaults on desktop
Keep platform availability in the pinned-target policy so regular web hides browser shortcuts without changing Electron defaults.
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Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>
