Bump Fronter.NET from 8bb24aa to 1a8e09a (#2334) #patch

Bumps
[Fronter.NET](https://github.com/ParadoxGameConverters/Fronter.NET) from
`8bb24aa` to `1a8e09a`.
<details>
<summary>Commits</summary>
<ul>
<li><a
href="https://github.com/ParadoxGameConverters/Fronter.NET/commit/1a8e09a56a19ca7707fa67dac810f499eaaccdb2"><code>1a8e09a</code></a>
Code tweaks in TranslationSource class (<a
href="https://redirect.github.com/ParadoxGameConverters/Fronter.NET/issues/688">#688</a>)</li>
<li>See full diff in <a
href="https://github.com/ParadoxGameConverters/Fronter.NET/compare/8bb24aa739136283e3a1c0a2c12560bf3594b94a...1a8e09a56a19ca7707fa67dac810f499eaaccdb2">compare
view</a></li>
</ul>
</details>
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