Better Image handling (#2665)

* enhance asset mgmt

- invoke ico directly
- invoke ico only at shortcut creation
- remove "ConvertTo-Icon" Function file

- removed image from xaml
- added stackpanel to xaml
- added functions to create viewbox with image
- added logic to add image via code to xaml & customdialog
- changed title color for customdialog

- remove webinvokes for assets from main.ps1

TODO: convert images into bitmap base64 string & add them directly into invoke-WinUtiltaskbaritem.ps1

* improve viewboxfunction

- add logo + checkmark + warning
- add params
- render on param "render"
- custom dialog logo function call fix
- main logo function call fix
- update winutiltaskbaritem to use new images

* fix sizing

- warning & checkmark sizing fix
- remove unneded comments

* fixes

- remove unneeded redundancy of "$canvas = New-Object Windows.Controls.Canvas"
- adjust empty lines
- use LimeGreen instead of Green

* fix layouting

* fixes

- use correct ctt blue color #0567ff
- remove unneeded comments
- rename Logoview to assets

* performance improvement

instead of rendering the image another time on each item switch, it caches it at the start and uses the render afterwards

* redo gray part of winutil logo

* correct gray shade

* fix coloring

* ise ico if available

---------

Co-authored-by: Chris Titus <contact@christitus.com>

functions/private/Set-WinUtilTaskbarItem.ps1

@@ -61,13 +61,13 @@ function Set-WinUtilTaskbaritem {
     if ($overlay) {
         switch ($overlay) {
             'logo' {
-                $sync["Form"].taskbarItemInfo.Overlay = "$env:LOCALAPPDATA\winutil\cttlogo.png"
+                $sync["Form"].taskbarItemInfo.Overlay = $sync["logorender"]
             }
             'checkmark' {
-                $sync["Form"].taskbarItemInfo.Overlay = "$env:LOCALAPPDATA\winutil\checkmark.png"
+                $sync["Form"].taskbarItemInfo.Overlay = $sync["checkmarkrender"]
             }
             'warning' {
-                $sync["Form"].taskbarItemInfo.Overlay = "$env:LOCALAPPDATA\winutil\warning.png"
+                $sync["Form"].taskbarItemInfo.Overlay = $sync["warningrender"]
             }
             'None' {
                 $sync["Form"].taskbarItemInfo.Overlay = $null