db: Convert UserExternalAccounts to basestore

Created by: ryanslade

Closes: https://github.com/sourcegraph/sourcegraph/issues/15859

Created by: sourcegraph-bot

Notifying subscribers in CODENOTIFY files for diff b5d979d6c85f36286afd374c56d610f861eeb339...df1a30d03fc083f1acd53aa9547623963c1baf95.

Notify	File(s)
@LawnGnome	internal/db/external_accounts.go
@asdine	internal/db/external_accounts.go
@eseliger	internal/db/external_accounts.go

Created by: ryanslade

Once you're happy I'm going to rename the file so that it starts with users_ like all the others related to users.

Created by: codecov[bot]

Codecov Report

Merging #17473 (df1a30d) into main (b5d979d) will increase coverage by 0.00%. The diff coverage is 78.04%.

@@           Coverage Diff           @@
##             main   #17473   +/-   ##
=======================================
  Coverage   51.83%   51.83%           
=======================================
  Files        1716     1716           
  Lines       85103    85121   +18     
  Branches     7590     7590           
=======================================
+ Hits        44111    44121   +10     
- Misses      37110    37120   +10     
+ Partials     3882     3880    -2     

Flag	Coverage Δ		*Carryforward flag
go	50.78% <78.04%> (+<0.01%)
integration	30.69% <ø> (ø)		Carriedforward from b5d979d
storybook	30.34% <ø> (ø)		Carriedforward from b5d979d
typescript	54.34% <ø> (ø)		Carriedforward from b5d979d
unit	34.72% <ø> (ø)		Carriedforward from b5d979d

*This pull request uses carry forward flags. Click here to find out more.

Impacted Files	Coverage Δ
internal/db/user_emails.go	58.06% <ø> (ø)
internal/db/external_accounts.go	64.21% <78.04%> (+0.23%)
...nal/campaigns/resolvers/changeset_apply_preview.go	64.44% <0.00%> (-1.49%)