feat: upgrade to svelte v5

[nolanlawson]

It's way too early to do this, but I did want to kick the tires on it at least

[github-actions]

📊 Tachometer Benchmark Results

Summary

benchmark-total

• emoji-picker-element-change-tab: unsure 🔍 -1% - +2% (-0.74ms - +1.20ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-database-interactions: unsure 🔍 -4% - +7% (-4.59ms - +7.00ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-first-load: unsure 🔍 -5% - +7% (-2.44ms - +3.65ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-search: unsure 🔍 -0% - +2% (-0.25ms - +1.16ms)
  ^{this-change vs tip-of-tree}
• emoji-picker-element-second-load: unsure 🔍 -5% - +2% (-2.24ms - +0.84ms)
  ^{this-change vs tip-of-tree}

Results

emoji-picker-element-change-tab

• Browser: chrome-headless 120.0.6099.71
• Sample size: 50
• Built by: Benchmarks #359

• Commit: e695328

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	54.78ms - 56.34ms	-	unsure 🔍 -1% - +2% -0.74ms - +1.20ms
tip-of-tree tip-of-tree	54.76ms - 55.90ms	unsure 🔍 -2% - +1% -1.20ms - +0.74ms	-

emoji-picker-element-database-interactions

• Browser: chrome-headless 120.0.6099.71
• Sample size: 50
• Built by: Benchmarks #359

• Commit: e695328

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	102.40ms - 111.00ms	-	unsure 🔍 -4% - +7% -4.59ms - +7.00ms
tip-of-tree tip-of-tree	101.61ms - 109.38ms	unsure 🔍 -7% - +4% -7.00ms - +4.59ms	-

emoji-picker-element-first-load

• Browser: chrome-headless 120.0.6099.71
• Sample size: 50
• Built by: Benchmarks #359

• Commit: e695328

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	52.29ms - 56.52ms	-	unsure 🔍 -5% - +7% -2.44ms - +3.65ms
tip-of-tree tip-of-tree	51.61ms - 55.99ms	unsure 🔍 -7% - +4% -3.65ms - +2.44ms	-

emoji-picker-element-search

• Browser: chrome-headless 120.0.6099.71
• Sample size: 50
• Built by: Benchmarks #359

• Commit: e695328

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	49.86ms - 51.27ms	-	unsure 🔍 -0% - +2% -0.25ms - +1.16ms
tip-of-tree tip-of-tree	50.07ms - 50.15ms	unsure 🔍 -2% - +0% -1.16ms - +0.25ms	-

emoji-picker-element-second-load

• Browser: chrome-headless 120.0.6099.71
• Sample size: 50
• Built by: Benchmarks #359

• Commit: e695328

Version	Avg time	vs this-change	vs tip-of-tree tip-of-tree
this-change	41.79ms - 43.86ms	-	unsure 🔍 -5% - +2% -2.24ms - +0.84ms
tip-of-tree tip-of-tree	42.38ms - 44.67ms	unsure 🔍 -2% - +5% -0.84ms - +2.24ms	-

_{tachometer-reporter-action v2 for Benchmarks}

[github-actions]

Size Change: +7.34 kB (+17%) ⚠️

Total Size: 50.1 kB

Filename	Size	Change
./bundle.js	50.1 kB	+7.34 kB (+17%)	⚠️

_{compressed-size-action}

[nolanlawson]

I like the idea of snippets, but they don't seem to work yet.

Sadly the bundle size has increased significantly, and the Tachometer tests don't show a significant improvement.

[nolanlawson]

Got snippets working, got the size down to +15% using hacks.

[nolanlawson]

Memory usage baseline:

| Scenario | Bytes             | Relative to blank page |
| -------- | ----------------- | ---------------------- |
| blank    | 380 kB (379592)   | 0 B (0)                |
| picker   | 1.23 MB (1228824) | 849 kB (849232)        |
| compact  | 1.11 MB (1108494) | 729 kB (728902)        |
| full     | 1.38 MB (1379992) | 1 MB (1000400)         |

Memory usage:

| Scenario | Bytes             | Relative to blank page |
| -------- | ----------------- | ---------------------- |
| blank    | 380 kB (379572)   | 0 B (0)                |
| picker   | 1.49 MB (1494441) | 1.11 MB (1114869)      |
| compact  | 1.11 MB (1108494) | 729 kB (728922)        |
| full     | 1.37 MB (1366930) | 987 kB (987358)        |

[nolanlawson]

Hm, sadly Safari 12 support seems broken due to the use of ?. (optional chaining).

Caniuse has Safari 12 usage at around 0.5%, Wikimedia has it at 0.25%.

[nolanlawson]

Updated memory numbers with Chrome 120:

Baseline:

Scenario	Bytes	Relative to blank page
blank	388 kB (387700)	0 B (0)
picker	1.23 MB (1228916)	841 kB (841216)
compact	1.11 MB (1108494)	721 kB (720794)
full	1.38 MB (1379992)	992 kB (992292)

This PR:

Scenario	Bytes	Relative to blank page
blank	380 kB (379572)	0 B (0)
picker	1.5 MB (1495097)	1.12 MB (1115525)
compact	1.11 MB (1108494)	729 kB (728922)
full	1.38 MB (1379992)	1 MB (1000420)

[nolanlawson]

See #381, I decided to yolo and switch to a custom framework instead