[MES-702] Return promises instead of await

[mad2sm0key]

Reasoning

• Every await creates a new microtask in the event loop

Proposed Changes

• Return promises directly where possible

How to test

• N/A

[codecov]

Codecov Report

Attention: Patch coverage is 26.63317% with 292 lines in your changes missing coverage. Please review.

Project coverage is 52.80%. Comparing base (3821301) to head (60bd117).
Report is 16 commits behind head on development.

Files with missing lines	Patch %	Lines
src/modules/pair/services/pair.compute.service.ts	0.00%	35 Missing ⚠️
...rc/modules/staking/services/staking.abi.service.ts	0.00%	31 Missing ⚠️
...ules/farm/base-module/services/farm.abi.service.ts	0.00%	20 Missing ⚠️
src/modules/pair/services/pair.abi.service.ts	0.00%	19 Missing ⚠️
...c/modules/tokens/services/token.compute.service.ts	6.66%	14 Missing ⚠️
...odules/staking/services/staking.compute.service.ts	7.14%	13 Missing ⚠️
...es/analytics/services/analytics.compute.service.ts	0.00%	10 Missing ⚠️
src/modules/router/services/router.abi.service.ts	0.00%	10 Missing ⚠️
src/modules/user/services/user.metaEsdt.service.ts	9.09%	10 Missing ⚠️
src/modules/energy/services/energy.abi.service.ts	0.00%	9 Missing ⚠️
... and 35 more

Additional details and impacted files

@@               Coverage Diff               @@
##           development    #1574      +/-   ##
===============================================
- Coverage        52.83%   52.80%   -0.04%     
===============================================
  Files              271      271              
  Lines            10756    10765       +9     
  Branches           852      858       +6     
===============================================
+ Hits              5683     5684       +1     
- Misses            4309     4311       +2     
- Partials           764      770       +6     

Flag	Coverage Δ
unittests	52.80% <26.63%> (-0.04%)	⬇️

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