Added ability to upload case documents.

Added ability to upload case documents i.e. files relevant to the case and view them.
Added masonry via vue-masonry (warning: No TS support).
Moved cases and appointment related components into their own folder appointments-cases.
Changed all <pre> blocks to have regular sans-serif fonts not monospaced, via a class added to ech <pre> block.

Replaced LambdaIntegration with a custom LambdaIntegrationNoPermission which does not individually add permissions for APIGateway integrations. A blanket permission is later added allowing any APIGW endpoint to call the lambda function.
This is required because of error: The final policy size (vwxyz) is bigger than the limit (20480).
Solution courtesy of aws/aws-cdk#9327 (comment)

.gitignore

@@ -131,7 +131,8 @@ template.yaml
 # CDK asset staging directory
 .cdk.staging
 cdk.out
-scratch.ts
-scratch.sql
+scratch/scratch.ts
+scratch/scratch.sql
 /server-build-metafile.json
 /.output/
+/scratch/

create_db.sql

@@ -111,12 +111,18 @@ CREATE TABLE `case` (
 );
 
 CREATE TABLE case_document (
-	id            INT PRIMARY KEY AUTO_INCREMENT,
-	case_id       INT           NOT NULL,
-	uploaded_on   DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
-	document_link VARCHAR(1024) NOT NULL,
+	id             INT PRIMARY KEY AUTO_INCREMENT,
+	case_id        INT           NOT NULL,
+	uploaded_on    DATETIME      NOT NULL DEFAULT CURRENT_TIMESTAMP,
+	file_link      VARCHAR(2048) NOT NULL,
+	file_mime      VARCHAR(1024) NOT NULL,
+	file_name      VARCHAR(1024) NOT NULL,
+	description    VARCHAR(1024) NOT NULL,
+	uploaded_by_id INT           NOT NULL,
 	FOREIGN KEY (case_id)
-		REFERENCES `case` (id)
+		REFERENCES `case` (id),
+	FOREIGN KEY (uploaded_by_id)
+		REFERENCES user (id)
 );
 
 CREATE TABLE `group` (