fix: add side=SERVER to mod section, revert dependency side to BOTH

Author: GatoArtStudio

src/main/resources/META-INF/mods.toml

@@ -9,6 +9,7 @@ displayName="Proxy Protocol Support"
 displayURL="https://www.curseforge.com/minecraft/mc-mods/proxy-protocol-support"
 authors="PanSzelescik"
 displayTest="IGNORE_ALL_VERSION"
+side = "SERVER"
 description='''
 Proxy Protocol support for Forge servers
 '''
@@ -17,4 +18,4 @@ modId = "minecraft"
 mandatory = true
 versionRange = "[1.19,)"
 ordering = "NONE"
-side = "SERVER"
+side = "BOTH"