fix(Loader): remove redundant spacing

[moyus]

Description

Remove redundant spacing after the last dot, so loader can be align horizontal center accurately.

Motivation and Context

As description.

Testing

Verified it looks correct in storyboard.

Screenshots

Checklist

• My code follows the style guide of this project.
• I have updated or added documentation accordingly.
• I have read the CONTRIBUTING document.

[airbnb-bot]

Size Changes

Package	Diff	ESM	Prev ESM	CJS	Prev CJS
core	+0.0%	563.55 KB	563.47 KB	705.43 KB	705.35 KB

Compared to master. File sizes are unminified and ungzipped.

View raw build stats

Previous (master)

{
  "apollo": {
    "esm": 10832,
    "lib": 14147
  },
  "app-shell": {
    "esm": 12906,
    "lib": 19874
  },
  "composer": {
    "esm": 68247,
    "lib": 101805
  },
  "core": {
    "esm": 576995,
    "lib": 722278
  },
  "forms": {
    "esm": 36180,
    "lib": 48408
  },
  "icons": {
    "esm": 156355,
    "lib": 205626
  },
  "layouts": {
    "esm": 15298,
    "lib": 20770
  },
  "metrics": {
    "esm": 5467,
    "lib": 7729
  },
  "test-utils": {
    "esm": 4279,
    "lib": 5937
  }
}

Current

{
  "apollo": {
    "esm": 10832,
    "lib": 14147
  },
  "app-shell": {
    "esm": 12906,
    "lib": 19874
  },
  "composer": {
    "esm": 68247,
    "lib": 101805
  },
  "core": {
    "esm": 577076,
    "lib": 722359
  },
  "forms": {
    "esm": 36180,
    "lib": 48408
  },
  "icons": {
    "esm": 156355,
    "lib": 205626
  },
  "layouts": {
    "esm": 15298,
    "lib": 20770
  },
  "metrics": {
    "esm": 5467,
    "lib": 7729
  },
  "test-utils": {
    "esm": 4279,
    "lib": 5937
  }
}

[moyus]

@milesj How can I fix the Happo check?