fix: add guard for draft tx in send validation

[BZahory]

Description

We have discovered a sentry error for the swaps flow in extension:

https://metamask.sentry.io/issues/5659965775/?environment=production&project=273505&query=firstRelease%3A12.0.0&referrer=issue-stream&sort=freq&statsPeriod=90d&stream_index=17

This error is due to the draftTransaction not being defined during validation; this is resolved with an undefined guard. This error appears in other actions; it is resolved in these cases as well.

Related issues

Fixes:

Manual testing steps

1. Set state.draftTransactions[state.currentTransactionUUID] to undefined in ducks/send/send.js for all selectors
2. Go to send flow
3. Ensure it loads without error

Screenshots/Recordings

Before

Screen.Recording.2024-08-01.at.4.37.55.PM.mov

After

Screen.Recording.2024-08-01.at.4.15.57.PM.mov

Pre-merge author checklist

• I've followed MetaMask Contributor Docs and MetaMask Extension Coding Standards.
• I've completed the PR template to the best of my ability
• I’ve included tests if applicable
• I’ve documented my code using JSDoc format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.

[github-actions]

CLA Signature Action: All authors have signed the CLA. You may need to manually re-run the blocking PR check if it doesn't pass in a few minutes.

[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 1 line in your changes missing coverage. Please review.

Project coverage is 70.00%. Comparing base (be24e25) to head (bb906c0).

Files	Patch %	Lines
ui/ducks/send/send.js	87.50%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop   #26295   +/-   ##
========================================
  Coverage    69.99%   70.00%           
========================================
  Files         1410     1410           
  Lines        49958    49964    +6     
  Branches     13798    13801    +3     
========================================
+ Hits         34968    34974    +6     
  Misses       14990    14990           

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[metamaskbot]

Builds ready [75e6c33]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (413 ± 389 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	76	507	130	89	43
		domContentLoaded	10	74	30	20	10
		load	50	2430	413	809	389
		domInteractive	10	74	30	20	10

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 38 Bytes (0.00%)

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[metamaskbot]

Builds ready [bb906c0]

• builds: chrome, firefox
• builds (beta): chrome
• builds (flask): chrome, firefox
• builds (MMI): chrome, firefox
• builds (test): chrome, firefox
• builds (test-flask): chrome, firefox
• build viz: Build System
• mv3: Background Module Init Stats
• mv3: UI Init Stats
• mv3: Module Load Stats
• mv3: Bundle Size Stats
• mv2: E2e Actions Stats
• code coverage: Report
• storybook: Storybook
• typescript migration: Dashboard
• all artifacts
• bundle viz:

  • background: 0, 1, 2, 3, 4, 5
  • common: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
  • content-script: 0
  • offscreen: 0
  • ui: 0, 1, 10, 11, 2, 3, 4, 5, 6, 7, 8, 9

Page Load Metrics (150 ± 174 ms)

Platform	Page	Metric	Min (ms)	Max (ms)	Average (ms)	StandardDeviation (ms)	MarginOfError (ms)
Chrome	Home	firstPaint	65	224	105	41	20
		domContentLoaded	8	155	34	36	17
		load	38	1724	150	363	174
		domInteractive	8	155	34	36	17

Bundle size diffs [🚨 Warning! Bundle size has increased!]

• background: 0 Bytes (0.00%)
• ui: 0 Bytes (0.00%)
• common: 77 Bytes (0.00%)