refactor: move x/mint and x/claim

[aljo242]

Closes #933

Additionally replaces the usage of spnerrors with the errors package found in ignite/modules

[codecov]

Codecov Report

Merging #942 (ce7f44e) into develop (a74f061) will increase coverage by 0.14%.
The diff coverage is 26.41%.

@@             Coverage Diff             @@
##           develop     #942      +/-   ##
===========================================
+ Coverage    10.60%   10.75%   +0.14%     
===========================================
  Files          328      280      -48     
  Lines        75537    66957    -8580     
===========================================
- Hits          8009     7198     -811     
+ Misses       67339    59596    -7743     
+ Partials       189      163      -26     

Impacted Files	Coverage Δ
x/campaign/keeper/msg_create_campaign.go	86.95% <0.00%> (ø)
x/campaign/keeper/msg_initialize_mainnet.go	94.23% <0.00%> (ø)
x/campaign/keeper/msg_mint_vouchers.go	69.38% <0.00%> (ø)
x/campaign/keeper/msg_unredeem_vouchers.go	63.15% <0.00%> (ø)
x/campaign/keeper/msg_update_total_supply.go	91.66% <0.00%> (ø)
x/launch/keeper/msg_create_chain.go	91.66% <0.00%> (ø)
x/launch/keeper/msg_revert_launch.go	92.68% <0.00%> (ø)
x/participation/keeper/msg_withdraw_allocations.go	83.78% <0.00%> (ø)
x/profile/keeper/msg_disable_coordinator.go	67.74% <0.00%> (ø)
x/profile/keeper/msg_update_coordinator_address.go	75.60% <0.00%> (ø)
... and 10 more

[lumtis]

LGTM 🙌