use bash script for some customizations instead of Git patches

patches/glitch/custom-glitch-defaults.patch

@@ -1,53 +0,0 @@
-diff --git a/app/javascript/flavours/glitch/reducers/local_settings.js b/app/javascript/flavours/glitch/reducers/local_settings.js
-index 81ab1cb0d..8aa07d4c3 100644
---- a/app/javascript/flavours/glitch/reducers/local_settings.js
-+++ b/app/javascript/flavours/glitch/reducers/local_settings.js
-@@ -11,7 +11,7 @@ const initialState = ImmutableMap({
-   navbar_under : false,
-   side_arm  : 'none',
-   side_arm_reply_mode : 'keep',
--  show_reply_count : false,
-+  show_reply_count : true,
-   always_show_spoilers_field: false,
-   confirm_missing_media_description: false,
-   confirm_boost_missing_media_description: false,
-@@ -19,10 +19,10 @@ const initialState = ImmutableMap({
-   prepend_cw_re: true,
-   preselect_on_reply: true,
-   inline_preview_cards: true,
--  hicolor_privacy_icons: false,
-+  hicolor_privacy_icons: true,
-   show_content_type_choice: false,
-   tag_misleading_links: true,
--  rewrite_mentions: 'no',
-+  rewrite_mentions: 'acct',
-   content_warnings : ImmutableMap({
-     filter       : null,
-     media_outside: false,
-@@ -33,7 +33,7 @@ const initialState = ImmutableMap({
-     auto        : ImmutableMap({
-       all              : false,
-       notifications    : true,
--      lengthy          : true,
-+      lengthy          : false,
-       reblogs          : false,
-       replies          : false,
-       media            : false,
-@@ -45,7 +45,7 @@ const initialState = ImmutableMap({
-     show_action_bar : true,
-   }),
-   media     : ImmutableMap({
--    letterbox        : true,
-+    letterbox        : false,
-     fullwidth        : true,
-     reveal_behind_cw : false,
-     pop_in_player    : true,
-@@ -56,7 +56,7 @@ const initialState = ImmutableMap({
-     tab_badge     : true,
-   }),
-   status_icons : ImmutableMap({
--    language:   true,
-+    language:   false,
-     reply:      true,
-     local_only: true,
-     media:      true,