New design: remove the line under the top bar and align page content with the burger menu #8102

Customer report

Menuer: Fjern den lodrette tynde streg under burgermenuen (se rød markering). Placer sideindholdet på linje med burgermenu, så vi bruger pladsen bedst muligt (se blå markering). Dette skal være gældende for alle sider i systemet.

(Raised before and still open.)

Current behaviour ("eForm new design" theme, every full-layout page)

• A 1px line runs across the full width under the top bar; with the side menu open, the drawer also has a 1px right border and a shadow.
• Page content starts noticeably to the right of the burger icon, because it is inset twice (card margin + card padding).

Where it comes from

• eform-client/src/scss/components/_workspace-patterns.scss, "1. Top app bar": mat-toolbar.nav-header { … border-bottom: 1px solid var(--md-surface-variant); … padding: var(--spacing-md) var(--spacing-2xl); } (--spacing-2xl = 20px; the mat-icon-button in full-layout.component.html adds a 12px inset before the glyph).
• Same file, "3c": .mat-drawer { border-right: 1px solid var(--md-surface-variant); box-shadow: var(--md-shadow); }.
• eform-client/src/scss/themes/_workspace.scss: content-card-margin: 16px, used by .content-card { margin: var(--content-card-margin) } in full-layout.component.scss.
• _workspace-patterns.scss, "3d. Page gutter": mat-drawer-container .content-card { padding: 8px 24px 24px; }.

Fix sketch (new-design theme only; Classic unchanged)

1. Remove the nav-header border-bottom (decide with the designer whether the drawer border/shadow goes too).
2. Align the content's left edge with the burger glyph: horizontal card margin 0 and card padding-left = toolbar padding + icon-button inset (20px + 12px), as one token so they can't drift; keep full-bleed views at 0.
3. Check pages whose routed root adds its own padding (list next to section 3d).

Tests

Playwright (new-design theme): on the compliance report page and one plugin page, nav-header border-bottom-width is 0, and the left x of the first sub-header/filter element equals the burger mat-icon left x (±1px).

Related: #7935, #8061, #8065.