Improve is_send/recieve_enabled interfaces in transfer app

[Farhad-Shabani]

Closes: #508

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PR author checklist:

• Added changelog entry, using unclog.
• Added tests.
• Linked to GitHub issue.
• Updated code comments and documentation (e.g., docs/).
• Tagged one reviewer who will be the one responsible for shepherding this PR.

Reviewer checklist:

• Reviewed Files changed in the GitHub PR explorer.
• Manually tested (in case integration/unit/mock tests are absent).

[codecov]

Codecov Report

Patch coverage: 37.50% and no project coverage change.

Comparison is base (7311bbd) 71.83% compared to head (cf78644) 71.84%.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #516   +/-   ##
=======================================
  Coverage   71.83%   71.84%           
=======================================
  Files         126      126           
  Lines       15852    15836   -16     
=======================================
- Hits        11387    11377   -10     
+ Misses       4465     4459    -6     

Impacted Files	Coverage Δ
crates/ibc/src/applications/transfer/context.rs	51.06% <ø> (ø)
crates/ibc/src/applications/transfer/error.rs	0.00% <ø> (ø)
.../src/applications/transfer/relay/on_recv_packet.rs	0.00% <0.00%> (ø)
crates/ibc/src/mock/context.rs	75.11% <50.00%> (ø)
...c/src/applications/transfer/relay/send_transfer.rs	95.83% <100.00%> (+0.34%)	⬆️

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[plafer]

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