error added that the new password entered should be different from the current password

[rahulrana701]

Fixes #3012

Changes:

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #3012

[rahulrana701]

@lindapaiste @raclim I have added the error message that the new password entered should be different from current password when updating the account settings.

[raclim]

Thanks for your work on this! I also made a few translations changes and added in filler ones to the other languages, but overall this looks good!