qt: General CSS related redesigns (dashpay#3563)

* qt: User border-image in place of image

For some reason image produced weird outputs on some resolution screens.

* qt: Fix layout issues in TransactionView

* qt: Fix layout issues in OverviewPage

* qt: Replace transparent with #00000000 in stylesheets

* qt: Use #a84832 as red where possible.

This includes css files and any color usage in code.

* qt: Finetune QPushButton style

* qt: Customized QSlider (used in the Debug window -> NetworkTraffic)

* qt: Finetune QToolbar style

* qt: Customized QProgressBar

* qt: Customized QCalendarWidget

* qt: Finetune QStatusBar style

- Give the progress label a name as css reference
- Set min height and margins

* qt: Finetune QMenu style

- Set a light rounded border
- Color for disabled items
- Color/Style for seperator
- Give the items padding

* qt: Customized QGroupBox

* qt: Customized QToolTip

* qt: Give inputs widgets a proper hover/focus/selected/disabled style

* qt: Finetune SendCoinsDialog

- Add light line below the coincontrol frame
- Add light line above fee frame
- Increase header font size
- Remove button layout changes of CoinControl button
- Fix Layout/Alignment of balance labels

* qt: Customized RPC console's autocompletition popup

* qt: Add stylesheets to Intro

This is the datadir selection dialog.

* qt: OptionsDialog - Give the reset button the "light button" style

* qt: Finetune shared styles in general.css

* qt: Finetune coloring in dark.css

* qt: Finetune coloring in light.css

* More fixes for traditional.css

No text colors, s/transparent/#00000000/

* qt: Run update-css-files.py

Co-authored-by: UdjinM6 <UdjinM6@users.noreply.github.com>

Author: 2 people