Bump react from 18.3.1 to 19.0.0 (#1714)

Bumps [react](https://github.com/facebook/react/tree/HEAD/packages/react) from 18.3.1 to 19.0.0.
- [Release notes](https://github.com/facebook/react/releases)
- [Changelog](https://github.com/facebook/react/blob/main/CHANGELOG.md)
- [Commits](https://github.com/facebook/react/commits/v19.0.0/packages/react)

---
updated-dependencies:
- dependency-name: react
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -968,7 +968,7 @@
     "nyc": "^17.1.0",
     "ovsx": "^0.10.1",
     "prettier": "^3.4.2",
-    "react": "^18.3.1",
+    "react": "^19.0.0",
     "rimraf": "^6.0.1",
     "selenium-webdriver": "^4.27.0",
     "shiki": "^1.24.1",

yarn.lock

@@ -2196,7 +2196,7 @@ __metadata:
     nyc: "npm:^17.1.0"
     ovsx: "npm:^0.10.1"
     prettier: "npm:^3.4.2"
-    react: "npm:^18.3.1"
+    react: "npm:^19.0.0"
     rimraf: "npm:^6.0.1"
     selenium-webdriver: "npm:^4.27.0"
     semver: "npm:^7.6.3"
@@ -5925,7 +5925,7 @@ __metadata:
   languageName: node
   linkType: hard
 
-"loose-envify@npm:^1.1.0, loose-envify@npm:^1.4.0":
+"loose-envify@npm:^1.4.0":
   version: 1.4.0
   resolution: "loose-envify@npm:1.4.0"
   dependencies:
@@ -7531,12 +7531,10 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react@npm:^18.3.1":
-  version: 18.3.1
-  resolution: "react@npm:18.3.1"
-  dependencies:
-    loose-envify: "npm:^1.1.0"
-  checksum: 10/261137d3f3993eaa2368a83110466fc0e558bc2c7f7ae7ca52d94f03aac945f45146bd85e5f481044db1758a1dbb57879e2fcdd33924e2dde1bdc550ce73f7bf
+"react@npm:^19.0.0":
+  version: 19.0.0
+  resolution: "react@npm:19.0.0"
+  checksum: 10/2490969c503f644703c88990d20e4011fa6119ddeca451e9de48f6d7ab058d670d2852a5fcd3aa3cd90a923ab2815d532637bd4a814add402ae5c0d4f129ee71
   languageName: node
   linkType: hard