fix toggling font setting using incorrect fallback value

src/components/settings_modal/tabs/general_tab.vue

@@ -68,7 +68,7 @@
             :model-value="mergedConfig.fontInterface"
             name="ui"
             :label="$t('settings.style.fonts.components_inline.interface')"
-            :fallback="{ family: 'sans-serif' }"
+            fallback="sans-serif"
             no-inherit="1"
             @update:model-value="v => updateFont('fontInterface', v)"
           />
@@ -77,7 +77,7 @@
           <FontControl
             :model-value="mergedConfig.fontInput"
             name="input"
-            :fallback="{ family: 'inherit' }"
+            fallback="inherit"
             :label="$t('settings.style.fonts.components_inline.input')"
             @update:model-value="v => updateFont('fontInput', v)"
           />

src/components/settings_modal/tabs/posts_tab.vue

@@ -58,7 +58,7 @@
           <FontControl
             :model-value="mergedConfig.fontPosts"
             name="post"
-            :fallback="{ family: 'inherit' }"
+            fallback="inherit"
             :label="$t('settings.style.fonts.components.post')"
             @update:model-value="v => updateFont('fontPosts', v)"
           />
@@ -67,7 +67,7 @@
           <FontControl
             :model-value="mergedConfig.fontMonospace"
             name="postCode"
-            :fallback="{ family: 'monospace' }"
+            fallback="monospace"
             :label="$t('settings.style.fonts.components.monospace')"
             @update:model-value="v => updateFont('fontMonospace', v)"
           />