Jordan/1044 wallet

[jbibla]

Closes #1044

Description:

• fixed floating send button
• removed unused css
• improved modal styling

❤️ Thank you!

[codecov]

Codecov Report

Merging #1119 into develop will not change coverage.
The diff coverage is 100%.

@@           Coverage Diff            @@
##           develop    #1119   +/-   ##
========================================
  Coverage    96.05%   96.05%           
========================================
  Files           81       81           
  Lines         1595     1595           
  Branches        79       79           
========================================
  Hits          1532     1532           
  Misses          56       56           
  Partials         7        7

Impacted Files	Coverage Δ
app/src/renderer/components/common/TmModalHelp.vue	100% <ø> (ø)	⬆️
app/src/renderer/components/common/TmModal.vue	100% <ø> (ø)	⬆️
app/src/renderer/components/wallet/PageSend.vue	100% <ø> (ø)	⬆️
.../src/renderer/components/common/TmModalReceive.vue	100% <ø> (ø)	⬆️
...erer/components/wallet/TmModalSendConfirmation.vue	100% <ø> (ø)	⬆️
...pp/src/renderer/components/staking/PageStaking.vue	100% <100%> (ø)	⬆️