[BMORE-2025] Update logo files, fix redirect

[bushong1]

• Updated event logo files
• Fixed /baltimore redirect to point to the new event
• Open registration
• Include logo in masthead

[github-actions]

en_US: Hi @bushong1! It looks like you've left the default text in the pull request description. Please replace that text with something meaningful. Thanks!
pt_BR: Olá @bushong1! Parece que você deixou o texto predefinido na descrição da PR. Por favor, substitua esse texto por algo mais relevante. Obrigado!

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[toshywoshy]

Please rename the file to logo.png, you do not need the square one anymore, the rendering will take this one and square it, as you have a good image there is no need for additional images

[bushong1]

@toshywoshy fixed