v0.12.20

• fix: harden push timeout handling and Tauri stub guard test 8fabb3a
• perf: optimistic calendar, contact, folder, and tab deletes 6db88be
• fix: add stubTauriModulesPlugin, push notification timeouts, and regression tests 31b2814
• docs: refresh release screenshots [skip ci] ebcf29d

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v0.12.19...v0.12.20