feat: ADR-008: Change the plain text encoding of links to hex

[dadamu]

Description

This PR implements what's described inside ADR-008.
Closes: #636

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[codecov]

Codecov Report

Merging #652 (5b32554) into master (d6e42b6) will decrease coverage by 68.08%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master     #652       +/-   ##
===========================================
- Coverage   83.79%   15.70%   -68.09%     
===========================================
  Files          91      168       +77     
  Lines        6663    45945    +39282     
===========================================
+ Hits         5583     7215     +1632     
- Misses        866    38115    +37249     
- Partials      214      615      +401     

Impacted Files	Coverage Δ
app/app.go	77.70% <ø> (ø)
x/profiles/client/cli/cli_app_links.go	34.16% <ø> (ø)
x/profiles/client/cli/cli_dtag_requests.go	81.89% <ø> (ø)
x/profiles/client/cli/cli_params.go	70.00% <ø> (ø)
x/profiles/client/cli/cli_profile.go	85.36% <ø> (ø)
x/profiles/client/cli/cli_relationships.go	75.51% <ø> (ø)
x/profiles/client/cli/query.go	0.00% <ø> (ø)
x/profiles/client/cli/tx.go	0.00% <ø> (ø)
x/profiles/client/utils/cli.pb.go	3.12% <ø> (ø)
x/profiles/client/utils/utils.go	56.25% <ø> (ø)
... and 194 more

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[RiccardoM]

Looks great to me!

[RiccardoM]

Small tip for reviewers: you can use this tool to check that the previous value (cosmos13j7p6faa9jr8ty6lvqv0prldprr6m5xenmafnt) corresponds to the now HEx-encoded one (636f736d6f7331336a377036666161396a72387479366c7671763070726c64707272366d3578656e6d61666e74).

[RiccardoM]

Can you just add a changeset entry @dadamu please? I think you can update the changeset command and then you should be able to add it properly

[dadamu]

@RiccardoM changeset added.