Update /mul, /max and /min definition

- Update command definition for /mul, /max and /min to fit the actual code behind, split them too
- Add numbersAndVariables enum provider, to centralize

public/scripts/slash-commands/SlashCommandCommonEnumsProvider.js

@@ -152,6 +152,35 @@ export const commonEnumProviders = {
         ].filter((item, idx, list)=>idx == list.findIndex(it=>it.value == item.value));
     },
 
+    /**
+     * Enum values for numbers and variable names
+     *
+     * Includes all variable names and the ability to specify any number
+     *
+     * @param {SlashCommandExecutor} executor - The executor of the slash command
+     * @param {SlashCommandScope} scope - The scope of the slash command
+     * @returns {SlashCommandEnumValue[]} The enum values
+     */
+    numbersAndVariables: (executor, scope) => [
+        ...commonEnumProviders.variables('all')(executor, scope),
+        new SlashCommandEnumValue(
+            'any variable name',
+            null,
+            enumTypes.variable,
+            enumIcons.variable,
+            (input) => /^\w*$/.test(input),
+            (input) => input,
+        ),
+        new SlashCommandEnumValue(
+            'any number',
+            null,
+            enumTypes.number,
+            enumIcons.number,
+            (input) => input == '' || !Number.isNaN(Number(input)),
+            (input) => input,
+        ),
+    ],
+
     /**
      * All possible char entities, like characters and groups. Can be filtered down to just one type.
      *