Add an ADR about the use of IndexedDB (#574)

7 jobs for dev in 4 minutes and 28 seconds (queued for 3 seconds)
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  Test Build Static
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Test_N_Build

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  Build Docker Images
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Nginx:Staging

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Node:Staging

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  Deploy
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Pub:Staging-HL

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Pub:Staging-HX

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Staging:HL

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Staging:HX

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