add scope.push

[beeth0ven]

add scope.push

[codecov]

Codecov Report

Merging #59 (ea501fe) into main (59b0094) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main       #59   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           23        23           
  Lines          277       282    +5     
=========================================
+ Hits           277       282    +5     

Impacted Files	Coverage Δ
lib/src/scopes/scopes/scope.dart	100.00% <ø> (ø)
lib/src/scopes/scopes/configurable_scope.dart	100.00% <100.00%> (ø)

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