refactor: expand and tidy the glossary

[DignitySAMP]

The glossary has been the same for a while and it's missing most of the words people actually run into when they start scripting. Nothing in it explains what a callback or native is, or i.e. what sync means.

So this PR aims to add the missing terms and tries to group things by topic: Scripting, Tools, Networking, Entities, Gamemode types. The reason for the headers is because the additions I made turned it into one long alphabet-soup table, which was a bit hard to read.

New additions: Native, Callback, Component, AMX, Tick, Client, Server, Sync, Desync, Ping, NPC, Actor, Cops and Robbers, Derby / Sumo, Survival, Freeroam.

I primarily looked in #pawn-help on Discord and added questions that often appear, i.e. actors vs npcs, what are components, etc. The rest I've filled in to the best of my knowledge, but would love if somebody else can cross check to make sure it's properly explained, especially the networking area.

I also rewrote a few things in the existing rows:

• Pawno and Qawno had the same description ("the script editor most people use for PAWN"), which doesn't tell anyone which one to open. Pawno is the old SA:MP editor, Windows only. Qawno ships with open.mp and is also cross-platform(?).
• The Masterlist row previously stated "The server SA:MP stores its data on such as the Internet list", which doesn't really describe what the masterlist is or does. Rewritten to be a bit more obvious.
• PAWN was described as the language for SA:MP scripts. These are the open.mp docs, so open.mp is now named too.
• Roleplay: "where players acting like in real life" -> fixed grammar, and it now says players are expected to stay in character, which is the actual difference from Reallife.
• Some typos fixed, for example in Plugins ("capabilites"), and the Word column is singular now (Gamemode instead of Gamemodes) since each row describes it's own thing.

Let me know what you guys think or if you guys have any suggestions/feedback.

[itsneufox]

Qawno is actually not crossplatform despite it being claimed to be on the repo.
Let me review the rest