feat(material/card): add title-text-color token

Fixes #31080

Author: pmpak

src/material/card/_m2-card.scss

@@ -25,6 +25,7 @@ $prefix: (mat, card);
     outlined-container-color: inspection.get-theme-color($theme, background, card),
     outlined-container-elevation: elevation.get-box-shadow(0),
     outlined-outline-color: rgba(inspection.get-theme-color($theme, foreground, base), 0.12),
+    title-text-color: inspection.get-theme-color($theme, foreground, text),
     subtitle-text-color: inspection.get-theme-color($theme, foreground, secondary-text),
     filled-container-color: inspection.get-theme-color($theme, background, card),
     filled-container-elevation: elevation.get-box-shadow(0)

src/material/card/_m3-card.scss

@@ -24,6 +24,7 @@ $prefix: (mat, card);
       outlined-container-elevation: elevation.get-box-shadow(map.get($system, level0)),
       outlined-outline-color: map.get($system, outline-variant),
       subtitle-text-color: map.get($system, on-surface),
+      title-text-color: map.get($system, on-surface),
     ),
     typography: (
       subtitle-text-font: map.get($system, title-medium-font),

src/material/card/card.scss

@@ -100,6 +100,7 @@ $fallbacks: m3-card.get-tokens(m3-system.$theme-with-system-vars);
 // Add slots for custom Angular Material card tokens.
 @include token-utils.use-tokens($token-prefix, $token-slots, $fallbacks) {
   .mat-mdc-card-title {
+    color: token-utils.slot(title-text-color);
     font-family: token-utils.slot(title-text-font);
     line-height: token-utils.slot(title-text-line-height);
     font-size: token-utils.slot(title-text-size);