docs: use discord.gg/graphify for the community invite

README, translations, support docs, and the GitHub templates were handing out a coded invite. It still joins the same server. Use the vanity URL.

(cherry picked from commit 7331198fc4)

.github/DISCUSSION_TEMPLATE/q-a.yml

@@ -8,7 +8,7 @@ body:
         [discussions](https://github.com/Graphify-Labs/graphify/discussions)
         and [issues](https://github.com/Graphify-Labs/graphify/issues) — your
         question may already be answered. For real-time help, join the
-        [Discord](https://discord.gg/XDnKVpzdXB). If you have found a bug, please
+        [Discord](https://discord.gg/graphify). If you have found a bug, please
         open an issue instead so it can be tracked.
   - type: textarea
     id: question

.github/ISSUE_TEMPLATE/config.yml

@@ -4,7 +4,7 @@ contact_links:
     url: https://github.com/Graphify-Labs/graphify/security/policy
     about: Please report vulnerabilities privately using the security policy.
   - name: Discord community
-    url: https://discord.gg/XDnKVpzdXB
+    url: https://discord.gg/graphify
     about: Join the Discord to ask questions and discuss ideas in real time.
   - name: 📖 Documentation
     url: https://docs.graphify.com

.github/workflows/welcome.yml

@@ -33,7 +33,7 @@ jobs:
               return;
             }
 
-            const discord = 'https://discord.gg/XDnKVpzdXB';
+            const discord = 'https://discord.gg/graphify';
             const discussions = 'https://github.com/Graphify-Labs/graphify/discussions';
 
             const body = isPR