integrate mobx for todos

yarn.lock

@@ -6509,6 +6509,18 @@ mkdirp@~0.5.1:
   dependencies:
     minimist "^1.2.6"
 
+mobx-react-lite@^4.1.1:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/mobx-react-lite/-/mobx-react-lite-4.1.1.tgz#725d74b025235f73dc2ab815766ffe010be2cf8a"
+  integrity sha512-iUxiMpsvNraCKXU+yPotsOncNNmyeS2B5DKL+TL6Tar/xm+wwNJAubJmtRSeAoYawdZqwv8Z/+5nPRHeQxTiXg==
+  dependencies:
+    use-sync-external-store "^1.4.0"
+
+mobx@^6.15.0:
+  version "6.15.0"
+  resolved "https://registry.yarnpkg.com/mobx/-/mobx-6.15.0.tgz#78b9b82d383724eebb4b6e50c2eb4ae2da861cb5"
+  integrity sha512-UczzB+0nnwGotYSgllfARAqWCJ5e/skuV2K/l+Zyck/H6pJIhLXuBnz+6vn2i211o7DtbE78HQtsYEKICHGI+g==
+
 [email protected]:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.0.0.tgz#5608aeadfc00be6c2901df5f9861788de0d597c8"
@@ -9138,6 +9150,11 @@ url-parse@^1.5.3:
     querystringify "^2.1.1"
     requires-port "^1.0.0"
 
+use-sync-external-store@^1.4.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/use-sync-external-store/-/use-sync-external-store-1.6.0.tgz#b174bfa65cb2b526732d9f2ac0a408027876f32d"
+  integrity sha512-Pp6GSwGP/NrPIrxVFAIkOQeyw8lFenOHijQWkUTrDvrF4ALqylP2C/KCkeS9dpUM3KvYRQhna5vt7IL95+ZQ9w==
+
 util-deprecate@^1.0.1, util-deprecate@^1.0.2, util-deprecate@~1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"