Mobile styling feedback round 2

**Describe the bug**
Various styling bugs on mobile

**Version**
0.47.03

**To Reproduce**

Steps to reproduce the behavior:
1. See Screenshots

**Screenshots**
## Buttons have inconsistent colors font size/style
For example, the clear button is red on the left and grey on the right.

| Header | Header |
|--------|--------|
|  |  |

## Extra proxies and browsers have uneven spacing

| Header | Header |
|--------|--------|
|  |  |

## Go button misaligned on the diff page
| Header | Header |
|--------|--------|
|  |  |

**Smartphone (please complete the following information):**
- Device: [e.g. iPhone6] Pixel 7
- OS: [e.g. iOS8.1] Android 14
- Browser [e.g. stock browser, safari] FF
- Version [e.g. 22] 131

**Additional context**
Good job @ojigs fixing so many issues last time.