fix: avoid calling getRootNode

[nolanlawson]

I don't believe this will help with #398, but it can't hurt. I realized that we don't actually need to call getRootNode at all, because the shadowRoot never changes.

[github-actions[bot]]

📊 Tachometer Benchmark Results

Summary

benchmark-total

• emoji-picker-element-change-tab: unsure 🔍 -2% - +0% (-1.19ms - +0.03ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-database-interactions: unsure 🔍 -4% - +7% (-3.92ms - +6.74ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-first-load: unsure 🔍 -5% - +4% (-2.41ms - +2.30ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-search: unsure 🔍 -0% - +0% (-0.08ms - +0.14ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-second-load: unsure 🔍 -4% - +9% (-1.55ms - +3.67ms)
  ^{this-change vs tip-of-tree}

Results

emoji-picker-element-change-tab

• Browser: chrome-headless 121.0.6167.160
• Sample size: 50
• Built by: Benchmarks #374
• Commit: 57b1b99

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	49.39ms - 49.99ms	-	unsure 🔍 -2% - +0% -1.19ms - +0.03ms
tip-of-tree tip-of-tree	49.74ms - 50.81ms	unsure 🔍 -0% - +2% -0.03ms - +1.19ms	-

emoji-picker-element-database-interactions

• Browser: chrome-headless 121.0.6167.160
• Sample size: 50
• Built by: Benchmarks #374
• Commit: 57b1b99

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	100.90ms - 108.87ms	-	unsure 🔍 -4% - +7% -3.92ms - +6.74ms
tip-of-tree tip-of-tree	99.94ms - 107.01ms	unsure 🔍 -6% - +4% -6.74ms - +3.92ms	-

emoji-picker-element-first-load

• Browser: chrome-headless 121.0.6167.160
• Sample size: 50
• Built by: Benchmarks #374
• Commit: 57b1b99

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	50.58ms - 53.86ms	-	unsure 🔍 -5% - +4% -2.41ms - +2.30ms
tip-of-tree tip-of-tree	50.59ms - 53.96ms	unsure 🔍 -4% - +5% -2.30ms - +2.41ms	-

emoji-picker-element-search

• Browser: chrome-headless 121.0.6167.160
• Sample size: 50
• Built by: Benchmarks #374
• Commit: 57b1b99

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	50.02ms - 50.18ms	-	unsure 🔍 -0% - +0% -0.08ms - +0.14ms
tip-of-tree tip-of-tree	49.99ms - 50.15ms	unsure 🔍 -0% - +0% -0.14ms - +0.08ms	-

emoji-picker-element-second-load

• Browser: chrome-headless 121.0.6167.160
• Sample size: 70
• Built by: Benchmarks #374
• Commit: 57b1b99

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	38.00ms - 42.14ms	-	unsure 🔍 -4% - +9% -1.55ms - +3.67ms
tip-of-tree tip-of-tree	37.42ms - 40.60ms	unsure 🔍 -9% - +4% -3.67ms - +1.55ms	-

_{tachometer-reporter-action v2 for Benchmarks}

[github-actions[bot]]

Size Change: -72 B (0%)

Total Size: 36.6 kB

Filename	Size	Change
./bundle.js	36.6 kB	-72 B (0%)

_{compressed-size-action}