Add bootstrap and main application template

Gemfile.lock

@@ -76,12 +76,18 @@ GEM
       tzinfo (~> 2.0)
     addressable (2.8.5)
       public_suffix (>= 2.0.2, < 6.0)
+    autoprefixer-rails (10.4.15.0)
+      execjs (~> 2)
     base64 (0.1.1)
     bcrypt (3.1.19)
     bigdecimal (3.1.4)
     bindex (0.8.1)
     bootsnap (1.16.0)
       msgpack (~> 1.2)
+    bootstrap (5.3.1)
+      autoprefixer-rails (>= 9.1.0)
+      popper_js (>= 2.11.8, < 3)
+      sassc-rails (>= 2.0.0)
     builder (3.2.4)
     capybara (3.39.2)
       addressable
@@ -111,6 +117,7 @@ GEM
     drb (2.1.1)
       ruby2_keywords
     erubi (1.12.0)
+    execjs (2.9.1)
     factory_bot (6.2.1)
       activesupport (>= 5.0.0)
     factory_bot_rails (6.2.0)
@@ -176,6 +183,7 @@ GEM
     nokogiri (1.15.4-x86_64-linux)
       racc (~> 1.4)
     orm_adapter (0.5.0)
+    popper_js (2.11.8)
     psych (5.1.1)
       stringio
     public_suffix (5.0.3)
@@ -250,6 +258,14 @@ GEM
       rspec-support (~> 3.12)
     rspec-support (3.12.1)
     ruby2_keywords (0.0.5)
+    sassc (2.4.0)
+      ffi (~> 1.9)
+    sassc-rails (2.1.2)
+      railties (>= 4.0.0)
+      sassc (>= 2.0)
+      sprockets (> 3.0)
+      sprockets-rails
+      tilt
     sprockets (4.2.1)
       concurrent-ruby (~> 1.0)
       rack (>= 2.2.4, < 4)
@@ -264,6 +280,7 @@ GEM
       railties (>= 6.0.0)
     stringio (3.0.8)
     thor (1.2.2)
+    tilt (2.3.0)
     timeout (0.4.0)
     turbo-rails (1.5.0)
       actionpack (>= 6.0.0)
@@ -296,6 +313,7 @@ PLATFORMS
 
 DEPENDENCIES
   bootsnap
+  bootstrap
   capybara
   debug
   devise