Add attachment media support
-rw-r--r-- 16 .gitignore
-rw-r--r-- 130 Makefile
drwxr-xr-x - config
-rw-r--r-- 190 default.conf
-rw-r--r-- 190 go.mod
-rw-r--r-- 774 go.sum
-rw-r--r-- 1464 main.go
drwxr-xr-x - mastodon
drwxr-xr-x - model
drwxr-xr-x - renderer
drwxr-xr-x - repository
drwxr-xr-x - service
drwxr-xr-x - static
drwxr-xr-x - templates
drwxr-xr-x - util