chore: remove the cursor and opacity for avatar and background selection

[brenopolanski]

Summary

When creating and editing a new profile, avatar and background images should not have click action. So there is no need for a cursor pointer and opacity styles.

Current Behavior

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

Merging #1893 into develop will not change coverage by %.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop    #1893   +/-   ##
========================================
  Coverage    58.88%   58.88%           
========================================
  Files          371      371           
  Lines         9305     9305           
  Branches      1920     1920           
========================================
  Hits          5479     5479           
  Misses        3600     3600           
  Partials       226      226           

Impacted Files	Coverage Δ
src/renderer/pages/Profile/ProfileEdition.vue	6.28% <ø> (ø)
src/renderer/pages/Profile/ProfileNew.vue	7.60% <ø> (ø)

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