build: switch from yarn to npm to manage js dependencies and move js contents to root

yarn v1 is being deprecated and starts to have some issues

Signed-off-by: Thomas Citharel <tcit@tcit.fr>

src/typings/absinthe.d.ts

@@ -0,0 +1,5 @@
+declare module "@framasoft/socket";
+
+declare module "@framasoft/socket-apollo-link";
+
+declare module "apollo-absinthe-upload-link";

src/typings/intl.d.ts

@@ -0,0 +1,20 @@
+declare namespace Intl {
+  type Locale = string;
+  type Locales = Locale[];
+  type Type = "conjunction" | "disjunction" | "unit";
+  type Style = "long" | "short" | "narrow";
+  type LocaleMatcher = "lookup" | "best fit";
+  interface ListFormatOptions {
+    type: Type;
+    style: Style;
+    localeMatcher: LocaleMatcher;
+  }
+
+  class ListFormat {
+    constructor(
+      locales?: Locale | Locales | undefined,
+      options?: Partial<ListFormatOptions>
+    );
+    public format: (items: string[]) => string;
+  }
+}

src/typings/matomo.d.ts

@@ -0,0 +1 @@
+declare module "vue-matomo";