[MM-14093] Rename 'team' to 'server' and 'tab' to 'view' in most cases, some additional cleanup (#2711)

* Rename MattermostTeam -> UniqueServer, MattermostTab -> UniqueView

* Rename 'team' to 'server'

* Some further cleanup

* Rename weirdly named function

* Rename 'tab' to 'view' in most instances

* Fix i18n

* PR feedback

.eslintrc.json

@@ -26,7 +26,8 @@
         "no-var": 2,
         "react/no-find-dom-node": 2,
         "multiline-ternary": 0,
-        "max-lines": ["warn", 650]
+        "max-lines": ["warn", 650],
+        "no-underscore-dangle": ["warn"]
     },
     "overrides": [
         {
@@ -120,7 +121,7 @@
                 "src/renderer/components/Button/Button.stories.tsx",
                 "src/renderer/components/TeamList.tsx",
                 "src/renderer/components/LoginModal.tsx",
-                "src/renderer/components/NewTeamModal.tsx",
+                "src/renderer/components/NewServerModal.tsx",
                 "src/renderer/settings.tsx",
                 "src/renderer/index.tsx"
             ],