refactor(web-client): nickname prompt before login

[IscoRuta98]

Background

The enter Wallet Nickname dialog box appears on clicking Confirm on the PIN screen, the user then clicks on the text box and starts entering a name and as the app progresses in the background the text box loses focus so the user typing does not work. Note that this is very awkward in Palau where the lag due to internet is much longer (it all happens over many seconds as opposed to 1-2 seconds).

Acceptance Criteria

Wait for the wallet nickname to be entered before opening the app

Prevent the same wallet from being saved twice. If the wallet address already exists in local storage do not display the save address checkbox to the user again

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[codecov-commenter]

Codecov Report

Merging #557 (adfd635) into main (454f165) will increase coverage by 0.35%. The diff coverage is 0.00%.

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@@            Coverage Diff             @@
##             main     #557      +/-   ##
==========================================
+ Coverage   46.63%   46.99%   +0.35%     
==========================================
  Files         173      173              
  Lines        2820     2824       +4     
  Branches      541      544       +3     
==========================================
+ Hits         1315     1327      +12     
+ Misses       1505     1497       -8     

Impacted Files	Coverage Δ
...b-client/src/app/state/qAccess/q-access.service.ts	24.59% <0.00%> (-1.73%)	:arrow_down:
.../src/app/views/wallet-access/wallet-access.page.ts	83.63% <0.00%> (ø)

... and 2 files with indirect coverage changes