Consistency updates in spelling.

Per https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Svgtranslate-finalise/en
Rephrase mesasge.

Inspired by https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Tsintuition-clearcookies-success/en
Spelling and consistency updates

Spotted in and inspired by https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Monumentsapi-db-field-registrant_url/en_%283%29
url => URL

Reported in  https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Monumentsapi-db-field-registrant_url/en_%283%29
Fix spelling

Reported in  https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Monumentsapi-db-field-st_address/en
Use meaningful link anchor

Reported in https://translatewiki.net/wiki/Thread:Support/About_Toolserver:Mwsnapshots-downloadpage-directlink/en