[sqlite] add config plugin

[Kudo]

Why

close ENG-12401

How

• add config-plugin for expo-sqlite to support some build-time configurations
  • customBuildFlags
  • enableFTS
  • useSQLCipher
• update doc for expo-sqlite's config-plugin

Test Plan

adding these config to apps/bare-expo/app.json, running prebuild and check the content in ios/Podfile.properties.json and android/gradle.properties

    plugins: [
      [
        "expo-sqlite",
        {
          "enableFTS": true,
          "useSQLCipher": true,
          "android": {
            "useSQLCipher": false,
            "customBuildFlags": ["-DSQLITE_ENABLE_DBSTAT_VTAB=1 -DSQLITE_ENABLE_SNAPSHOT=1"]
          },
          "ios": {
            "enableFTS": true,
            "customBuildFlags": ["-DSQLITE_ENABLE_DBSTAT_VTAB=1 -DSQLITE_ENABLE_SNAPSHOT=1"]
          }
        }
      ]
    ]

Checklist

• Documentation is up to date to reflect these changes (eg: https://docs.expo.dev and README.md).
• Conforms with the Documentation Writing Style Guide
• This diff will work correctly for npx expo prebuild & EAS Build (eg: updated a module plugin).

[Kudo]

• [sqlite] add config plugin #30825 👈
• [sqlite] custom sqlite and sqlcipher #30824 : 1 other dependent PR (#30826 )
• main

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[linear]

ENG-12401 Add SQLCipher support to expo-sqlite

[Kudo]

Merge activity

• Aug 8, 10:54 PM EDT: @Kudo started a stack merge that includes this pull request via Graphite.
• Aug 8, 10:56 PM EDT: Graphite couldn't merge this PR because it had conflicts with the trunk branch.