Update Nuxt to v3.12.1 (#1720)

* Update Nuxt dependencies

* Fix ref access in ChartDisplay

* Fix feature flags cookie options type error

* Specify type-only imports

* Fix shorthands access to tags outside of reactive scope

* Replace most useRoute calls with useRoute from vue-router

Nuxt's version of this composable is horrendously broken (nuxt/nuxt#21340)

* Import all svgs with ?component parameter

Fixes weird hydration issues + gives correct type

components/ui/charts/ChartDisplay.vue

@@ -160,7 +160,7 @@
                     <div
                       :style="{
                         '--color-brand': isUsingProjectColors
-                          ? intToRgba(project.color, project.id, theme.value ?? undefined)
+                          ? intToRgba(project.color, project.id, theme ?? undefined)
                           : getDefaultColor(project.id),
                       }"
                       class="legend__item__color"
@@ -306,7 +306,7 @@ import { analyticsSetToCSVString, intToRgba } from '~/utils/analytics.js'
 
 import { UiChartsCompactChart as CompactChart, UiChartsChart as Chart } from '#components'
 
-import PaletteIcon from '~/assets/icons/palette.svg'
+import PaletteIcon from '~/assets/icons/palette.svg?component'
 
 const router = useRouter()
 const theme = useTheme()