Make screens immediately update before polling period elapses

[ryanmelt]

What changed

See title

Why it changed

A screen with a 5 second period just showed nulls until after 5 seconds.

Testing strategy

Manually tested

[codecov]

Codecov Report

❌ Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 79.63%. Comparing base (aa0c194) to head (e569828).

Files with missing lines	Patch %	Lines
.../openc3-vue-common/src/components/Openc3Screen.vue	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3862      +/-   ##
==========================================
+ Coverage   79.58%   79.63%   +0.05%     
==========================================
  Files         901      901              
  Lines       68067    68070       +3     
  Branches     2633     2635       +2     
==========================================
+ Hits        54171    54208      +37     
+ Misses      13222    13191      -31     
+ Partials      674      671       -3     

Flag	Coverage Δ
frontend	66.63% <66.66%> (+0.25%)	⬆️
python	79.48% <ø> (-0.01%)	⬇️
ruby-api	82.58% <ø> (+0.10%)	⬆️
ruby-backend	85.14% <ø> (ø)

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[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 SonarQube Cloud