Fix misspelling of database "READ COMMITTED"

settings/l10n/cs_CZ.js

settings/l10n/cs_CZ.json

settings/l10n/de.js

settings/l10n/de.json

settings/l10n/de_DE.js

settings/l10n/de_DE.json

settings/l10n/en_GB.js

settings/l10n/en_GB.json

settings/l10n/es.js

settings/l10n/es.json

settings/l10n/fr.js

settings/l10n/fr.json

settings/l10n/he.js

settings/l10n/he.json

settings/l10n/hu_HU.js

settings/l10n/hu_HU.json

settings/l10n/it.js

settings/l10n/it.json

settings/l10n/ja.js

settings/l10n/ja.json