add success message to add patient, edit patient,patient notes, patient files.

update note and file view to match UI.
restrict file types in file uploud.
add image viewer

Frontend/patient_manager/pubspec.lock

@@ -185,6 +185,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.0"
+  charcode:
+    dependency: transitive
+    description:
+      name: charcode
+      sha256: fb98c0f6d12c920a02ee2d998da788bca066ca5f148492b7085ee23372b12306
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.1"
   checked_yaml:
     dependency: transitive
     description:
@@ -241,6 +249,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.3"
+  csslib:
+    dependency: transitive
+    description:
+      name: csslib
+      sha256: "706b5707578e0c1b4b7550f64078f0a0f19dec3f50a178ffae7006b0a9ca58fb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -416,6 +432,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.1.0"
+  html:
+    dependency: transitive
+    description:
+      name: html
+      sha256: "3a7812d5bcd2894edf53dfaf8cd640876cf6cef50a8f238745c8b8120ea74d3a"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.15.4"
   http:
     dependency: "direct main"
     description:
@@ -989,6 +1013,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.2"
+  universal_html:
+    dependency: "direct main"
+    description:
+      name: universal_html
+      sha256: "56536254004e24d9d8cfdb7dbbf09b74cf8df96729f38a2f5c238163e3d58971"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.4"
+  universal_io:
+    dependency: transitive
+    description:
+      name: universal_io
+      sha256: "1722b2dcc462b4b2f3ee7d188dad008b6eb4c40bbd03a3de451d82c78bba9aad"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
   url_launcher:
     dependency: transitive
     description: