Add aliases for command fronthistory

Add aliases `fh`, `history` and `switches`, executed as `pk;s history`

src/pluralkit/bot/commands/system_commands.py

@@ -32,7 +32,7 @@ async def system_root(ctx: CommandContext):
         await system_delete(ctx)
     elif ctx.match("front") or ctx.match("fronter") or ctx.match("fronters"):
         await system_fronter(ctx, await ctx.ensure_system())
-    elif ctx.match("fronthistory"):
+    elif ctx.match("fronthistory") or ctx.match("fh") or ctx.match("history") or ctx.match("switches"):
         await system_fronthistory(ctx, await ctx.ensure_system())
     elif ctx.match("frontpercent") or ctx.match("frontbreakdown") or ctx.match("frontpercentage") or ctx.match("front%") or ctx.match("fp"):
         await system_frontpercent(ctx, await ctx.ensure_system())

src/pluralkit/bot/help.json

@@ -72,6 +72,7 @@
                 },
                 {
                     "name": "fronthistory",
+                    "aliases": ["system fh", "system history", "system switches"],
                     "usage": "system [id] fronthistory",
                     "category": "System",
                     "description": "Shows the last 10 switches of a system."