feat(lang): add vue-mode for working with .vue files

modules/languages/siren-mmm.el

@@ -0,0 +1,15 @@
+;;; siren-mmm.el --- jimeh's Emacs Siren: mmm-mode configuration.
+
+;;; Commentary:
+
+;; Basic configuration for mmm-mode.
+
+;;; Code:
+
+(use-package mmm-mode
+  :defer t
+  :custom-face
+  (mmm-default-submode-face ((t nil))))
+
+(provide 'siren-mmm)
+;;; siren-mmm.el ends here

modules/languages/siren-vue.el

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+;;; siren-vue.el --- jimeh's Emacs Siren: vue-mode configuration.
+
+;;; Commentary:
+
+;; Basic configuration for vue-mode.
+
+;;; Code:
+
+(require 'siren-company)
+(require 'siren-prettier-js)
+(require 'siren-mmm)
+
+(use-package vue-mode
+  :hook
+  (vue-mode . siren-vue-mode-setup)
+
+  :init
+  (defun siren-vue-mode-setup ()
+    (prettier-js-mode)
+    (company-mode)
+    (lsp)
+    (subword-mode)
+    (siren-folding)))
+
+(provide 'siren-vue)
+;;; siren-vue.el ends here