fix(reactions): add a migration to make sure old emoji reactions have…

[igor-sirotin]

cherry-pick:

• fix(reactions): add a migration to make sure old emoji reactions have the emoji prop #7110

[status-im-auto]

Jenkins Builds

❔	Commit	#️⃣	Finished (UTC)	Duration	Platform	Result
✔️	415f362	#1	2025-11-18 16:19:00	~3 min	linux/status-go	📦zip
✔️	415f362	#1	2025-11-18 16:19:02	~3 min	macos/status-go	📦zip
✔️	415f362	#1	2025-11-18 16:19:54	~4 min	windows/status-go	📦zip
✔️	415f362	#1	2025-11-18 16:27:28	~12 min	linux/nwaku	📦zip
✔️	415f362	#1	2025-11-18 16:27:38	~12 min	tests-rpc	📄log
✔️	415f362	#1	2025-11-18 16:44:51	~29 min	tests	📄log

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 59.74%. Comparing base (06dcd35) to head (415f362).
⚠️ Report is 1 commits behind head on release/10.31.x.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           release/10.31.x    #7119      +/-   ##
===================================================
+ Coverage            59.72%   59.74%   +0.02%     
===================================================
  Files                  804      804              
  Lines               113874   113874              
===================================================
+ Hits                 68009    68036      +27     
+ Misses               38900    38871      -29     
- Partials              6965     6967       +2     

Flag	Coverage Δ
functional	34.78% <ø> (-0.06%)	⬇️
unit	55.42% <ø> (+0.02%)	⬆️

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see 35 files with indirect coverage changes