chore(dependencies): remove react-router and react-router-dom from package.json and yarn.lock

- Deleted react-router and react-router-dom dependencies as part of the migration to TanStack Router.
- Updated yarn.lock to reflect the removal of these packages, streamlining the dependency tree.

These changes help maintain a cleaner project structure following the recent routing enhancements.

package.json

@@ -343,8 +343,6 @@
     "react-markdown": "^10.1.0",
     "react-player": "^3.3.1",
     "react-redux": "^9.1.2",
-    "react-router": "6",
-    "react-router-dom": "6",
     "react-spinners": "^0.14.1",
     "react-transition-group": "^4.4.5",
     "redux": "^5.0.1",

yarn.lock

@@ -9531,13 +9531,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"@remix-run/router@npm:1.23.0":
-  version: 1.23.0
-  resolution: "@remix-run/router@npm:1.23.0"
-  checksum: 10c0/eaef5cb46a1e413f7d1019a75990808307e08e53a39d4cf69c339432ddc03143d725decef3d6b9b5071b898da07f72a4a57c4e73f787005fcf10162973d8d7d7
-  languageName: node
-  linkType: hard
-
 "@replit/codemirror-lang-nix@npm:^6.0.1":
   version: 6.0.1
   resolution: "@replit/codemirror-lang-nix@npm:6.0.1"
@@ -14335,8 +14328,6 @@ __metadata:
     react-markdown: "npm:^10.1.0"
     react-player: "npm:^3.3.1"
     react-redux: "npm:^9.1.2"
-    react-router: "npm:6"
-    react-router-dom: "npm:6"
     react-spinners: "npm:^0.14.1"
     react-transition-group: "npm:^4.4.5"
     redux: "npm:^5.0.1"
@@ -26555,30 +26546,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"react-router-dom@npm:6":
-  version: 6.30.0
-  resolution: "react-router-dom@npm:6.30.0"
-  dependencies:
-    "@remix-run/router": "npm:1.23.0"
-    react-router: "npm:6.30.0"
-  peerDependencies:
-    react: ">=16.8"
-    react-dom: ">=16.8"
-  checksum: 10c0/262954ba894d6a241ceda5f61098f7d6a292d0018a6ebb9c9c67425b7deb6e59b6191a9233a03d38e287e60f7ac3702e9e84c8e20b39a6487698fe088b71e27a
-  languageName: node
-  linkType: hard
-
-"react-router@npm:6, react-router@npm:6.30.0":
-  version: 6.30.0
-  resolution: "react-router@npm:6.30.0"
-  dependencies:
-    "@remix-run/router": "npm:1.23.0"
-  peerDependencies:
-    react: ">=16.8"
-  checksum: 10c0/e6f20cf5c47ec057a057a4cfb9a55983d0a5b4b3314d20e07f0a70e59e004f51778d4dac415aee1e4e64db69cc4cd72e5acf8fd60dcf07d909895b8863b0b023
-  languageName: node
-  linkType: hard
-
 "react-spinners@npm:^0.14.1":
   version: 0.14.1
   resolution: "react-spinners@npm:0.14.1"