Branding

[Ettore Di Giacinto]

Is your feature request related to a problem? Please describe.
Not really, but would be nice to have for downstream projects/self-hosted instances a way to change brandings (such as logo displayed on the navbar)

Describe the solution you'd like
A branding configuration for LocalAI. We might want to consider at this point having a configuration file to start localai, or we can expose settings via environment variables/args

Describe alternatives you've considered
N/A

Additional context
N/A

[jtwolfe]

                                        __________
╭╮   ╭━━━╮╭━━━╮╭━━━╮╭╮     ╭━━━╮╭━━╮   /          \
┃┃   ┃╭━╮┃┃╭━╮┃┃╭━╮┃┃┃     ┃╭━╮┃╰┫┣╯  /____________\
┃┃   ┃┃ ┃┃┃┃ ╰╯┃┃ ┃┃┃┃     ┃┃ ┃┃ ┃┃   | _____ ____ |
┃┃ ╭╮┃┃ ┃┃┃┃ ╭╮┃╰━╯┃┃┃ ╭╮  ┃╰━╯┃ ┃┃   | | | | |  | |
┃╰━╯┃┃╰━╯┃┃╰━╯┃┃╭━╮┃┃╰━╯┃╭╮┃╭━╮┃╭┫┣╮  | |_|_| |  | |
╰━━━╯╰━━━╯╰━━━╯╰╯ ╰╯╰━━━╯╰╯╰╯ ╰╯╰━━╯  |_______|  |_|