#420: add updateDataOptimistically utility to disallow like counter out of sync (#446)

* add isLikedPressed flag to disallow like counter out of sync

* create revertible helper for updateDataOptimistically

* test implementation

* Update updateDataOptimistically() and apply to reposts

---------

Co-authored-by: Paul Frazee <pfrazee@gmail.com>

package.json

@@ -84,10 +84,12 @@
     "lodash.isequal": "^4.5.0",
     "lodash.omit": "^4.5.0",
     "lodash.samplesize": "^4.2.0",
+    "lodash.set": "^4.3.2",
     "lodash.shuffle": "^4.2.0",
     "lru_map": "^0.4.1",
     "mobx": "^6.6.1",
     "mobx-react-lite": "^3.4.0",
+    "mobx-utils": "^6.0.6",
     "normalize-url": "^8.0.0",
     "patch-package": "^6.5.1",
     "postinstall-postinstall": "^2.1.0",
@@ -143,6 +145,7 @@
     "@types/lodash.isequal": "^4.5.6",
     "@types/lodash.omit": "^4.5.7",
     "@types/lodash.samplesize": "^4.2.7",
+    "@types/lodash.set": "^4.3.7",
     "@types/lodash.shuffle": "^4.2.7",
     "@types/react-avatar-editor": "^13.0.0",
     "@types/react-native": "^0.67.3",