update telos logos, default antelope favicon

[donnyquixotic]

See #808

Description

• this is a telos logo update only, theme/colors will be updated in follow-up tasking

Checklist:

• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have cleaned up the code in the areas my change touches
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings
• I have removed any unnecessary console messages
• I have tested for mobile functionality and responsiveness

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