GODT-22: Frontend-backend

- GODT-1246 Implement settings view.
- GODT-1257 GODT-1246: Account and Help view
- GODT-1298: Minimal working build (panics)
- GODT-1298: loading QML (needs Popup window)
- GODT-1298: WARN: Adding PopupWindow not possible!
    In therecipe qt the `quickwidgets` classes are within `quick` module, but
    forgot to add library and include paths into cgo flags. Therefore
    compilation fails and it would be hard to patch therecipe in order to
    fix it.

    I am not sure if rewrite PopupWindow into go would make any difference,
    therefore I decided to use normal QML Window without borders.
- GODT-1298: Rework status window, add backend props, slots and signals.
- GODT-1298: Users
- GODT-1298: Login
- GODT-1298: WIP Help and bug report
- GODT-1178: MacOS dock icon control
- GODT-1298: Help, bug report, update and events
- GODT-1298: Apple Mail config and Settings (without cache on disk)

internal/frontend/qml/icons/ic-chevron-down.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g id="ic-chevron-down">
+<path id="icon" fill-rule="evenodd" clip-rule="evenodd" d="M2.3 6.30001L8 12L13.7 6.30001L13 5.60001L8 10.58L3 5.60001L2.3 6.30001Z" fill="#17181C"/>
+</g>
+</svg>

internal/frontend/qml/icons/ic-chevron-up.svg

@@ -0,0 +1,5 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<g id="ic-chevron-up">
+<path id="icon" fill-rule="evenodd" clip-rule="evenodd" d="M13.7 9.7L7.99999 4L2.29999 9.7L2.99999 10.4L7.99999 5.42L13 10.4L13.7 9.7Z" fill="#17181C"/>
+</g>
+</svg>

internal/frontend/qml/icons/ic-copy.svg

@@ -0,0 +1,4 @@
+<svg width="12" height="13" viewBox="0 0 12 13" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M4 2V0H12V10H9V9H11V1H5V2H4Z" fill="#262A33"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M0 3V13H8V3H0ZM7 4V12H1V4H7Z" fill="#262A33"/>
+</svg>

internal/frontend/qml/icons/ic-external-link.svg

@@ -0,0 +1,3 @@
+<svg width="16" height="16" viewBox="0 0 16 16" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path fill-rule="evenodd" clip-rule="evenodd" d="M14 2L13.2427 2L13.2427 1.99998L13.2426 2L13 2L9 2V3H12.2426L5.76613 9.47651L6.47324 10.1836L13 3.65686V7H14V3V2ZM2 2H5V3H3L3 13L13 13V11H14V14H13H3H2V13V3V2Z" fill="white"/>
+</svg>

internal/frontend/qml/icons/ic-info.svg

@@ -0,0 +1,12 @@
+<svg width="64" height="64" viewBox="0 0 64 64" fill="none" xmlns="http://www.w3.org/2000/svg">
+<circle cx="32" cy="32" r="30" fill="url(#paint0_linear)"/>
+<path d="M32 18C30.3431 18 29 19.3431 29 21C29 22.6569 30.3431 24 32 24C33.6569 24 35 22.6569 35 21C35 19.3431 33.6569 18 32 18Z" fill="white"/>
+<path d="M30 28C28.8954 28 28 28.8954 28 30C28 31.1046 28.8954 32 30 32V42C28.8954 42 28 42.8954 28 44C28 45.1046 28.8954 46 30 46H34C35.1046 46 36 45.1046 36 44C36 42.8954 35.1046 42 34 42V30C34 28.8954 33.1046 28 32 28H30Z" fill="white"/>
+<defs>
+<linearGradient id="paint0_linear" x1="32" y1="62" x2="14.4192" y2="7.69125" gradientUnits="userSpaceOnUse">
+<stop stop-color="#4F6DE6"/>
+<stop offset="0.483234" stop-color="#63A1FE"/>
+<stop offset="1" stop-color="#82D2FF"/>
+</linearGradient>
+</defs>
+</svg>

internal/frontend/qml/icons/ic-trash.svg

@@ -0,0 +1,5 @@
+<svg width="14" height="13" viewBox="0 0 14 13" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M5 5H6V10H5V5Z" fill="#262A33"/>
+<path d="M8 5H9V10H8V5Z" fill="#262A33"/>
+<path fill-rule="evenodd" clip-rule="evenodd" d="M10 2H14V3H12V13H2V3H0V2H4V0H10V2ZM9 1H5V2H9V1ZM11 12H3V3H11V12Z" fill="#262A33"/>
+</svg>