Element defaults to white theme on startup

[Kommynct]

Description

Locale change happening on startup every time, causing the theme to not stay set, always resetting to white when restarting element.

Steps to reproduce

I don't know what exactly i've done, because I can't fix it either, but, it appears that it's trying to set the language to en-us when it should be en_US

Describe how what happens differs from what you expected.

No update_base_url is defined: auto update is disabled
Fetching translation json for locale: en_EN
Changing application language to en-us
Fetching translation json for locale: en-us
Could not fetch translation json for locale: 'en-us' Error: Cannot find module './i18n/strings/en-us.json'
Require stack:
- /usr/lib/element/app.asar/src/language-helper.js
- /usr/lib/element/app.asar/src/tray.js
- /usr/lib/element/app.asar/src/electron-main.js
- /usr/lib/electron12/resources/default_app.asar/main.js
- 
    at Module._resolveFilename (internal/modules/cjs/loader.js:887:15)
    at Function.n._resolveFilename (electron/js2c/browser_init.js:261:1128)
    at Module._load (internal/modules/cjs/loader.js:732:27)
    at Function.f._load (electron/js2c/asar_bundle.js:5:12913)
    at Module.require (internal/modules/cjs/loader.js:959:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at AppLocalization.fetchTranslationJson (/usr/lib/element/app.asar/src/language-helper.js:83:20)
    at /usr/lib/element/app.asar/src/language-helper.js:102:39
    at Array.forEach (<anonymous>)
    at AppLocalization.setAppLocale (/usr/lib/element/app.asar/src/language-helper.js:101:17) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/usr/lib/element/app.asar/src/language-helper.js',
    '/usr/lib/element/app.asar/src/tray.js',
    '/usr/lib/element/app.asar/src/electron-main.js',
    '/usr/lib/electron12/resources/default_app.asar/main.js',
    undefined
  ]
}
Resetting the UI components after locale change
Resetting the UI components after locale change
Changing application language to en-us
Fetching translation json for locale: en-us
Could not fetch translation json for locale: 'en-us' Error: Cannot find module './i18n/strings/en-us.json'
Require stack:
- /usr/lib/element/app.asar/src/language-helper.js
- /usr/lib/element/app.asar/src/tray.js
- /usr/lib/element/app.asar/src/electron-main.js
- /usr/lib/electron12/resources/default_app.asar/main.js
- 
    at Module._resolveFilename (internal/modules/cjs/loader.js:887:15)
    at Function.n._resolveFilename (electron/js2c/browser_init.js:261:1128)
    at Module._load (internal/modules/cjs/loader.js:732:27)
    at Function.f._load (electron/js2c/asar_bundle.js:5:12913)
    at Module.require (internal/modules/cjs/loader.js:959:19)
    at require (internal/modules/cjs/helpers.js:88:18)
    at AppLocalization.fetchTranslationJson (/usr/lib/element/app.asar/src/language-helper.js:83:20)
    at /usr/lib/element/app.asar/src/language-helper.js:102:39
    at Array.forEach (<anonymous>)
    at AppLocalization.setAppLocale (/usr/lib/element/app.asar/src/language-helper.js:101:17) {
  code: 'MODULE_NOT_FOUND',
  requireStack: [
    '/usr/lib/element/app.asar/src/language-helper.js',
    '/usr/lib/element/app.asar/src/tray.js',
    '/usr/lib/element/app.asar/src/electron-main.js',
    '/usr/lib/electron12/resources/default_app.asar/main.js',
    undefined
  ]
}
Resetting the UI components after locale change
Error getting the event index passphrase out of the secret store [Error: The name is not activatable]

Version information

i've tried latest arch linux package, element on the web, and it seems to be account-wide.

• Platform: linux
• web (in-browser) or desktop? both the desktop app and firefox 90 were tested

For the web app:

• OS: Arch
• URL: develop.element.io / app.element.io / somewhere else? If a private server, what version of Element Web?

For the desktop app:

• OS: arch