Rework slash command enum values pt.2

- Fix jsconfig module resolution for imports in frontend scripts
- Add file with common slash command enum values

public/scripts/power-user.js

@@ -2883,7 +2883,7 @@ function setAvgBG() {
         return `rgba(${rNew.toFixed(0)}, ${gNew.toFixed(0)}, ${bNew.toFixed(0)}, 1)`;
     }
 
-
+    return '';
 }
 
 async function setThemeCallback(_, text) {
@@ -3887,9 +3887,11 @@ $(document).ready(() => {
         name: 'random',
         callback: doRandomChat,
         unnamedArgumentList: [
-            new SlashCommandArgument(
-                'optional tag name', [ARGUMENT_TYPE.STRING], false,
-            ),
+            SlashCommandArgument.fromProps({
+                description: 'optional tag name',
+                typeList: [ARGUMENT_TYPE.STRING],
+                enumProvider: () => tags.filter(tag => Object.values(tag_map).some(x => x.includes(tag.id))).map(tag => new SlashCommandEnumValue(tag.name)),
+            }),
         ],
         helpString: 'Start a new chat with a random character. If an argument is provided, only considers characters that have the specified tag.',
     }));