Add password rules and password change page for Mountain Warehouse (#865)

* add mountain warehouse

* fix spacing

* add allowed symbols for mountain warehouse

* escape backslash, add escaped quote

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Co-authored-by: Tachibana Kanade <h0m54r@mastodon.social>

Author: homsar

quirks/change-password-URLs.json

@@ -269,6 +269,7 @@
     "michaels.com": "https://www.michaels.com/on/demandware.store/Sites-MichaelsUS-Site/default/Account-EditProfile",
     "microsoft.com": "https://account.live.com/password/Change",
     "mlb.com": "https://www.mlb.com/account/general",
+    "mountainwarehouse.com": "https://www.mountainwarehouse.com/account/details-link/",
     "msn.com": "https://account.live.com/password/change?refd=account.microsoft.com&fref=home.banner.changepwd",
     "music.youtube.com": "https://myaccount.google.com/signinoptions/password",
     "my.goabode.com": "https://my.goabode.com/#/app/account",

quirks/password-rules.json

@@ -731,6 +731,9 @@
     "mlb.com": {
         "password-rules": "minlength: 8; maxlength: 15; required: lower; required: upper; required: digit;"
     },
+    "mountainwarehouse.com": {
+        "password-rules": "minlength: 8; maxlength: 16; required: lower; required: upper; required: digit; allowed: [-@#$%^&*_+={}|\\:',?/`~\"();.];"
+    },
     "mpv.tickets.com": {
         "password-rules": "minlength: 8; maxlength: 15; required: lower; required: upper; required: digit;"
     },