Feature: Remove messages with unicode character spam from chat

[solonovamax]

It's a common technique of spammers to just use random unicode characters to bypass the filter.

So, just search for any messages with more than, let's say, 4 charcters past like, 0x007F. Alternatively, you could go up to 0x00FF if you the Latin-1 Supplement characters, 0x017F if you want Latin Extendend-A characters, and 0x024F if you want Latin Extended-B characters. See: https://unicode-table.com/en/#basic-latin (Note, the § character used for colour codes is part of the Latin-1 Supplement characters)

Here's some examples of spam text from today:

§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | ZｐKｓHIｐUｖ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | LｋNｏRHｍDｊ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | RｍMｎKXｌYｄ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | RｖNａOMｂCｍ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | DｄRｘJWａSｉ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | PｃWｒWAｓLｇ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | KｄWｑYMｎNｖ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | RｌOｌGGｃLｚ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | KｆNｇVDｔNｌ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | QｑPｗBQｚGｎ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | RｂQｏEZｗPｇ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | HｘJｐVBｌVｓ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | BｌKｏONｐRｃ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | BｖYｔRAｗQｅ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | EｘYｌDUｍOｓ
§7[1✫] §a[VIP§6+§a] officialspitfire§f: discord．gg⧸KCALS < FREE MVP++ | UｄPｎDAｙLｒ