chore: Update @zen-browser/surfer dependency to version 1.1.15

chore: Remove unused browser.ftl file

Quick HOTFIX

Fix issue with active tab not being set correctly in ZenViewSplitter

chore: Update alpha.yml workflow to consistently use the use-warp-bui…

• Fixed dangling link with /usr/bin/zen

chore: Enable Zen Workspaces functionality and set default workspace …

chore: Update runs-on to ubuntu-latest for Linux job

chore: Add macOS update manifest to alpha workflow

chore: Update update manifests for 0.0.0-a.3