hide theme selector in prod (#2671)

...oads-net-worth-and-cash-flow-reports-3-chromium-linux.png

...s-net-worth-graph-and-checks-visuals-1-chromium-linux.png

...s-net-worth-graph-and-checks-visuals-2-chromium-linux.png

...s-net-worth-graph-and-checks-visuals-3-chromium-linux.png

...pshots/Rules-checks-the-page-visuals-1-chromium-linux.png

...pshots/Rules-checks-the-page-visuals-2-chromium-linux.png

...pshots/Rules-checks-the-page-visuals-3-chromium-linux.png

...-applied-when-creating-a-transaction-1-chromium-linux.png

...-applied-when-creating-a-transaction-2-chromium-linux.png

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...-applied-when-creating-a-transaction-6-chromium-linux.png

...-applied-when-creating-a-transaction-1-chromium-linux.png

...-applied-when-creating-a-transaction-2-chromium-linux.png

...-applied-when-creating-a-transaction-3-chromium-linux.png

...ts/Schedules-checks-the-page-visuals-1-chromium-linux.png

...ts/Schedules-checks-the-page-visuals-2-chromium-linux.png

...ts/Schedules-checks-the-page-visuals-3-chromium-linux.png

...e-transaction-and-later-completes-it-1-chromium-linux.png