NumberField's validation icon takes up too much space

# 🐛 Bug Report 

NumberField's validation icons take up too much room due to extra padding in front.

<img width="235" alt="NumberField" src="https://user-images.githubusercontent.com/8961049/132895335-16648fd0-846c-4cec-856c-f89d5bce96fe.png">


## 🤔 Expected Behavior



## 😯 Current Behavior





## 💁 Possible Solution



## 🔦 Context





## 💻 Code Sample




## 🌍 Your Environment



| Software         | Version(s) |
| ---------------- | ---------- |
| react-spectrum   |
| Browser          |
| Operating System |

## 🧢 Your Company/Team



## 🕷 Tracking Issue (optional)

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NumberField's validation icon takes up too much space #2317

🐛 Bug Report

🤔 Expected Behavior

😯 Current Behavior

💁 Possible Solution

🔦 Context

💻 Code Sample

🌍 Your Environment

🧢 Your Company/Team

🕷 Tracking Issue (optional)

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