Added .exprtoggleglobal / .extg which can be used to toggle usage of global expressions on the server

src/NadekoBot/data/aliases.yml

@@ -1274,6 +1274,9 @@ quotesimport:
 showembed:
   - showembed
 # NadekoExpressions
+exprtoggleglobal:
+  - exprtoggleglobal
+  - extg
 exprreact:
   - exreact
   - exr

src/NadekoBot/data/strings/commands/commands.en-US.yml

@@ -1581,6 +1581,10 @@ rategirl:
   desc: "Use the universal hot-crazy wife zone matrix to determine the girl's worth. It is everything young men need to know about women. At any moment in time, any woman you have previously located on this chart can vanish from that location and appear anywhere else on the chart."
   args:
     - "@SomeGurl"
+exprtoggleglobal:
+  desc: "Toggles whether global expressions are usable on this server."
+  args:
+    - ""
 exprreact:
   desc: "Sets or resets reactions (up to 3) which will be added to the response message of the Expression with the specified ID. Provide no emojis to reset."
   args:

src/NadekoBot/data/strings/responses/responses.en-US.json

@@ -1,4 +1,6 @@
 {
+  "expr_global_disabled": "Global expressions are now disabled on this server.",
+  "expr_global_enabled": "Global expressions are no longer disabled on this server.",
   "expr_deleted": "Expression deleted",
   "expr_insuff_perms": "Insufficient permissions. Requires Bot ownership for global expressions, and Administrator for server expressions.",
   "expressions": "Expressions",