Update param names to camel case naming standard

[rmccar]

What is the context of this PR?

Fixes: #2138 Updated various params to use the camel case naming standard.

Ive also documented the APIManualQueryParams param on the address input component which was previously undocumented.

BREAKING CHANGE This will be a breaking change and will require the renaming of some params for the following components and params:

• Card - image.placeholderURL will need to be renamed image.placeholderUrl
• Cookies Banner - settingsLinkTextURL will need to be renamed settingsLinkTextUrl
• Header - logo.logoURL will need to be renamed logo.logoUrl
• Header - ISOCode will need to be renamed isoCode
• Header - navigation.subNavigation.overviewURL will need to be renamed navigation.subNavigation.overviewUrl
• Share Page -pageURL will need to be renamed pageUrl
• Video - videoLinkURL will need to be renamed videoLinkUrl
• Page Template - assetsURL will need to be renamed assetsUrl
• Footer - OGLLink will need to be renamed oglLink
• Message - messageID will need to be renamed messageId
• Access Code - maxlength will need to be renamed maxLength
• Address input - APIDomain will need to be renamed apiDomain
• Address input - APIDomainBearerToken will need to be renamed apiDomainBearerToken
• Address input - APIManualQueryParams will need to be renamed apiManualQueryParams
• Address input - errorMessageAPI will need to be renamed errorMessageApi
• Address input - errorMessageAPILinkText will need to be renamed errorMessageApiLinkText

How to review this PR

• Check that changes make sense
• Check any Nunjucks params haven't been missed

Checklist

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• [x] I have selected the correct Assignee
• [x] I have linked the correct Issue

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[rmccar]

All of the found ones seem good, but I've found some other instances of njk params.

So in address input there's three that start with 'API' "APIDomain": params.APIDomain, "APIDomainBearerToken": params.APIDomainBearerToken, "APIManualQueryParams": params.APIManualQueryParams,

Then it's not a parameter exactly but there's a descriptionID in the label component.

Weirdly messageID is still showing up for me when I look at the branch locally - but I can see the changes when I review the changed documents so I have no idea why that's happening!

These have now been updated