Minify HTML to Reduce Load time and Data

# Why?
Currently the HTML returned from conditional is large and riddled with blank newlines. In fact if you go to `/spring_evals` the page request is 403 kb! This affects load time, and can affect users data usage when visiting the page on mobile data. Conditional is slow, mostly because of the LDAP calls, but we can make an effort to reduce load times on the client when possible.

# The Fix
We can use a library called [flask-optimize](https://github.com/sunary/flask-optimize) to deal with this at each request. When attaching it to that same `spring_evals` route, it was reduced from 403 kb to 9.5kb and load time was reduced by a full 6 seconds!

# Downsides
We add a new dependency, and may have to deal with adding a few ` `s. Honestly minimal imo

# Okay, so just fix it
I will. As soon as #169 is merged. It's a separate change and I don't want to group them together. There's also a chance for a conflict if I submit a second PR. I'll just wait for the sake of avoiding such conflicts

從 `/spring_evals` 路由開始，在進行任何變更之前先查看 #169 的狀態，因為 issue 作者打算等待該問題獲得處理。在那裡評估 flask-optimize 整合，檢查回應是否仍然正確，以及其大小和載入時間是否比回報的 403 KB 和六秒基準有所改善。

由索引模型根據 Issue 內容生成。