Ana/3133 loader on networks page missing

[Bitcoinera]

Closes #3133

Description:

I added the simple loader (TmDataLoading.vue) to the Networks page

Thank you! 🚀

---

For contributor:

• Added changes entries. Run yarn changelog for a guided process.
• Reviewed Files changed in the github PR explorer
• Attach screenshots of the UI components on the PR description (if applicable)
• Scope of work approved for big PRs

For reviewer:

• Manually tested the changes on the UI

[Bitcoinera]

Oops, it seems this messed up with the unit tests... Makes sense

[codecov]

Codecov Report

Merging #3159 into develop will increase coverage by <.01%.
The diff coverage is 100%.

@@             Coverage Diff             @@
##           develop    #3159      +/-   ##
===========================================
+ Coverage    88.35%   88.35%   +<.01%     
===========================================
  Files          125      125              
  Lines         1777     1778       +1     
  Branches       254      265      +11     
===========================================
+ Hits          1570     1571       +1     
  Misses         202      202              
  Partials         5        5

Impacted Files	Coverage Δ
src/components/network/PageNetworks.vue	100% <100%> (ø)	⬆️

[faboweb]

I will accept the PR but want to show you that TmPage already has logic for loading states. Check PageValidator

[Bitcoinera]

Yes, I saw! Thank you for the hint 😉 !