Fix config schema

Closes #3422448

Adds the missing properties to the schema. I made a guess that cookieextra is supposed to be a string. Doesn't look like it's actually currently in use.

added 4 commits

• f813b807 - Issue #3254849 by Mojiferous: Error if cache ttl is null
• 62078b12 - Issue #3335775: Take alters from other modules into account when re-using...
• 6ccc041e - Issue #3430940 by Rajeshreeputra, Project Update Bot, ankitv18, deepakkm,...
• 17307e80 - Fix config schema

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added 1 commit

• ed69988f - Convert existing config to use new schema

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merged