ENSWBSITES-1110: Display transcript metadata in transcript accordian (#526)

* ENSWBSITES-1110: Display transcript metadata in transcript accordian
- retrieve metadata from thoas (gencode_basic, tsl, appris, ccds)
- update component to display metadata
- Modify transcript object by setting each key instead of overwriting
- rename git-column-gap to column-gap since new CSS standard
7 jobs for dev in 4 minutes and 39 seconds (queued for 3 seconds)
Status Job ID Name Coverage
  Test Build Static
passed #507145
Test_N_Build

00:03:26

 
  Build Docker Images
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Nginx:Staging

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passed #507147
Node:Staging

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  Deploy
passed #507151
Pub:Staging-HL

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passed #507149
Pub:Staging-HX

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passed #507150
Staging:HL

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passed #507148
Staging:HX

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