fix html files not being packaged for build

src/seqta/ui/ThemeCreator.ts

@@ -1,5 +1,4 @@
 import browser from "webextension-polyfill";
-import popup from '../../interface/index.html?url'
 
 /**
  * Open the Theme Creator sidebar, it is an embedded page loaded similar to the extension popup
@@ -9,7 +8,7 @@ export function OpenThemeCreator() {
     const width = '300px'
 
     const themeCreatorIframe: HTMLIFrameElement = document.createElement('iframe')
-    themeCreatorIframe.src = `${browser.runtime.getURL(popup)}#themeCreator`
+    themeCreatorIframe.src = `${browser.runtime.getURL('src/interface/index.html')}#themeCreator`
     themeCreatorIframe.id = 'themeCreatorIframe'
     themeCreatorIframe.setAttribute('allowTransparency', 'true')
     themeCreatorIframe.setAttribute('excludeDarkCheck', 'true')